Table of contents
Other bearing housings
- Split plummer block housings S30
- Split plummer block housings SAF
- Split plummer block housings RLE
- Split plummer block housings KPG & KPGZ
- Split plummer block housings LOE
- Plummer block housings units VRE3
- Unspilt plummer block housings BND
- Take-up housings SPA
- Flanged housings F112
- Flanged housings F5
- Legal notice regarding data freshness
- Further information
Split plummer block housings S30
Housings for wide range of applications
Split plummer block housings S30 can be used for various applications, such as sintering and pelletising equipment as well as paper processing machinery ➤ Figure.
|
Split plummer block housings S30 |
 |
Suitable bearings
Shaft diameters from 110 mm to 150 mm
The dimensions of split plummer block housings S30 are matched to spherical roller bearings 230 and toroidal roller bearings C30 ➤ Table. The range of shaft diameters is between 110 mm and 150 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
23024..-K to 23034..-K |
|
23024 to 23034 |
| Toroidal roller bearings | |
|
C3022..-K to C3034..-K |
|
C3022 to C3034 |
Split spherical roller bearings
Unsplit spherical roller bearings with an adapter sleeve can be replaced by split spherical roller bearings. This gives a considerable reduction in the work associated with bearing replacement in numerous applications.
In order to ensure selection of the correct combination of housing and bearing when using split bearings, please contact Schaeffler.
The range of split spherical roller bearings is described in detail in a separate publication TPI 250.
Materials
Flake graphite cast iron as standard
Material for housing body:
- flake graphite cast iron (standard)
- spheroidal graphite cast iron
- cast steel
Locating and non-locating bearings
Locating bearing arrangement by means of locating ring
The bearing seats in the housing are machined such that the bearings are movable in the housing and can thus function as non-locating bearings. Locating bearing arrangements can be achieved by the insertion of a locating ring FRM adjacent to the bearing outer ring.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Felt seals
Plummer block housings S30 are sealed by means of felt seals ➤ Figure. The felt seals allow shaft misalignment of up to 0,5° in both directions and are suitable for grease lubrication.
The oil-soaked felt strips must be inserted in the associated slots in the housing. In the case of a housing closed on one side, 2 felt strips are inserted, while 4 felt strips are necessary in the case of a continuous shaft.
|
Felt seal for plummer block housing S30 |
 |
Covers DK made from polyamide
In the case of a housing closed on one side, a cover DK is inserted in the slots can be inserted instead of the felt strips on one side of the housing. Covers DK are made from polyamide.
Scope of delivery
When ordering split plummer block housings S30, the housing designation only describes the housing body. The felt strips for sealing the housing are included in the scope of delivery, while the cover and locating rings must be ordered separately. The rolling bearing and, if necessary, the adapter sleeve must also be ordered separately.
Further information
Detailed information on split plummer block housings S30: Bearing Housings GK 1.
Split plummer block housings SAF
Housing dimensions for inch size shaft centre heights
Split plummer block housings SAF and the associated bearings form bearing arrangement units that can be matched, through the appropriate selection of accessories, to a wide range of applications. The housings are specifically designed for inch size shaft centre heights ➤ Figure.
|
Split plummer block housings SAF |
 |
Suitable bearings
Shaft diameters from 1 3/8 inch to 8 inch
The dimensions of split plummer block housings SAF are matched to spherical roller bearings 222..-K ➤ Table. The range of shaft diameters is between 1 3/8 inch and 8 inch.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
22209..-K to 22244..-K |
Split spherical roller bearings
In the replacement of bearings, the unsplit spherical roller bearings can be replaced by split spherical roller bearings 222S. This gives a considerable reduction in the work associated with bearing replacement in numerous applications.
In order to ensure selection of the correct combination of housing and bearing when using split bearings, please contact Schaeffler.
The range of split spherical roller bearings is described in detail in a separate publication TPI 250.
Materials
Flake graphite cast iron as standard
Material for housing body:
- flake graphite cast iron to ASTM A48 Class 35 (standard)
- spheroidal graphite cast iron to ASTM A536 Grade 65-45-12
The colour of the paint coating on housings made from flake graphite cast iron is grey (colour RAL 7016, anthracite grey), while on housings made from spheroidal graphite cast iron it is orange (colour RAL 2004, pure orange).
Locating and non-locating bearings
Locating bearing arrangement by means of locating ring
The bearing seats in the housing are machined such that the bearings are movable and can thus function as non-locating bearings. Locating bearing arrangements can be achieved by the insertion of a locating ring SR.
Lubrication
Grease or oil lubrication
Suitable lubrication methods:
- grease lubrication
- oil lubrication
Sealing
For sealing of the bearing housings, the standard seals available are the labyrinth seal and the Taconite seal ➤ Table. These seals are matched to the rectangular section annular slots on both sides of the housings.
Labyrinth seals LER
Labyrinth seals LER give non-contact sealing. They are therefore suitable for high speeds. The O ring, which is pressed between the labyrinth ring and shaft, is made from NBR and is suitable for temperatures of up to +100 °C.
Labyrinth seals allow shaft misalignment of up to 0,3° in both directions and are suitable for grease lubrication. If necessary, the labyrinth can be relubricated. For this purpose, a lubrication hole must be made in the upper housing section for each labyrinth seal. The optimum positions are indicated by cast-in pilot holes on the top of the housing.
Taconite seals TA
Taconite seals TA comprise two rings, of which one is located in the housing and the other on the shaft. An axial and a radial labyrinth is formed between these rings, where the effectiveness of the latter is increased by means of two spiral rings. Due to the non-contact sealing, Taconite seals are suitable for high speeds. The two statically acting O rings are made from NBR and are suitable for temperatures of up to +100 °C.
Taconite seals are designed for extreme operating conditions characterised by heavy contamination and the impact of abrasive particles.
Taconite seals allow shaft misalignment of up to 0,3° in both directions and are suitable for grease lubrication. For relubrication, the seal is fitted with a lubrication nipple.
Split labyrinth seals LERS
For plummer block housings SAF, labyrinth seals are also available in a split design. As a result, the work involved in replacing the seal can be considerably reduced.
Split Taconite seals TAS
For plummer block housings SAF, Taconite seals are also available in a split design. As a result, the work involved in replacing the seal can be considerably reduced. Split Taconite seals are not standard seals and are available by agreement.
Covers EC
Covers EC are used with housings closed on one side. The covers fit in the rectangular section annular slots in the housings. They are suitable for temperatures up to +100 °C.
Labyrinth and Taconite seal
|
Sealing |
Labyrinth seal, unsplit |
Taconite seal, |
||
|---|---|---|---|---|
 |
 |
|||
|
Designation |
LER |
TA |
||
|
Material |
Aluminium, NBR |
Steel, NBR |
||
|
Pieces per pack |
1 |
1 |
||
|
Suitability for sealing against |
||||
|
dust |
(+) |
++ |
||
|
fine, solid particles |
+ |
++ |
||
|
coarse, solid particles |
+ |
++ |
||
|
slivers |
++ |
++ |
||
|
spray liquids |
‒ |
++ |
||
|
Operating limits |
||||
| Long term temperature |
°C |
–40 to +100 |
–40 to +100 |
|
| Long term temperature |
°F |
–40 to +210 |
–40 to +210 |
|
|
Circumferential velocity |
m/s |
No restriction |
No restriction |
|
|
Misalignment |
° |
≦0,3 |
≦0,3 |
|
|
Low friction |
++ |
+ |
||
|
Axial shaft displacement (suitability as non-locating bearing) |
+ |
+ |
||
|
Vertical arrangement |
(+) |
(+) |
||
|
Suitability |
+ |
++ |
||
|
Suitability |
(+) |
‒ |
||
|
Compatibility with sunlight |
++ |
++ |
||
|
Preconditions |
||||
|
Tolerance class1) |
h8 (h9) |
h8 (h9) |
||
|
Shaft roughness |
μm |
Ra 3,2 |
Ra 3,2 |
|
- The envelope requirement Ⓔ applies
Scope of delivery
When ordering a split plummer block housing SAF of universal design SAF..U, the accessories frequently required for standard shaft diameters (labyrinth seals, covers and locating rings) are already included in the scope of delivery. Depending on the housing configuration, it may be necessary to order other accessories separately.
Further information
Detailed information on split plummer block housings SAF: Split Plummer Block Housings SAF (from October 2017) TPI 229.
Split plummer block housings RLE
Housings for the bearing arrangements of back-up rollers
Split plummer block housings RLE were developed specifically for the bearing arrangements of back-up rollers ➤ Figure.
|
Split plummer block housings RLE |
 |
Suitable bearings
Shaft diameters from 180 mm to 500 mm
The dimensions of split plummer block housings RLE are matched to spherical roller bearings 241 and toroidal roller bearings C41 ➤ Table. The range of shaft diameters is between 180 mm and 500 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
24122..-K30 to 241/500..-K30 |
|
24122 to 241/500 |
| Toroidal roller bearings | |
|
C4120..-K30 to C41/500..-K30 |
|
C4120 to C41/500 |
Materials
Flake graphite cast iron as standard
Material for housing body:
- flake graphite cast iron (standard)
- spheroidal graphite cast iron
- cast steel
Locating and non-locating bearings
Housings in locating bearing design and non‑locating bearing design
The housings are supplied as a locating bearing design or non-locating bearing design. In the locating bearing, the bearing is clamped between the housing covers. In the non-locating bearing, the bearing can align itself axially, since the covers have shorter centring collars.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Housing designs with and without cover
Plummer block housings RLE of design A are intended for the bearing arrangements of shaft ends. One side is closed by a cover and the other side is sealed against the shaft. Design B is intended for continuous shafts, in which case the housing is sealed against the shaft on both sides.
Labyrinth rings with felt seal
The seal is a combination of a labyrinth seal and a felt seal ➤ Figure. The labyrinth is separated from the grease cavity in the housing by oil-soaked felt strips, so a more economical grease can be used for labyrinth lubrication.
The labyrinth rings are unsplit. The seal allows shaft misalignment of up to 0,5° in both directions.
|
Labyrinth ring with felt seal for plummer block housing RLE |
 |
Scope of delivery
In the case of split plummer block housings RLE, the seals and cover (for a housing design closed on one side) are included in the scope of delivery. The rolling bearing and, if necessary, the withdrawal sleeve must be ordered separately.
Further information
Detailed information on split plummer block housings RLE: Bearing Housings GK 1.
Split plummer block housings KPG, KPGZ
Housings for converters in the steel industry
Split plummer block housings KPG and KPGZ were developed specifically for the journal bearing arrangement in converters ➤ Figure.
|
Split plummer block housings KPG, KPGZ |
 |
Suitable bearings
Shaft diameters from 470 mm to 1 320 mm
The dimensions of split plummer block housings KPG and KPGZ are matched to spherical roller bearings 249 ➤ Table. The housings KPG are intended for bearings with a tapered bore and adjustment sleeve, while the housings KPGZ are intended for bearings with a cylindrical bore. The range of shaft diameters is between 470 mm and 1 320 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
249/470..-K30 to 249/1250..-K30 |
|
249/500 to 249/1320 |
Split spherical roller bearings
On the locating bearing side of the converter, an unsplit spherical roller bearing can be replaced by a split spherical roller bearing. Since there is no need to dismount the drive system, the work involved in mounting can be considerably reduced.
In order to ensure selection of the correct combination of housing and bearing when using split bearings, please contact Schaeffler.
The range of split spherical roller bearings is described in detail in a separate publication TPI 250.
Materials
Spheroidal graphite cast iron
Material for housing body:
- spheroidal graphite cast iron
Locating and non-locating bearings
Housings in locating bearing design and non‑locating bearing design
The housings are supplied as a locating bearing design or non-locating bearing design. The locating bearing on the drive side provides axial guidance of the converter support ring.
The locating bearing design of the housings KPG and KPGZ is originally designed for the fitting of unsplit spherical roller bearings. The locating bearing arrangement is formed by locating rings on both sides of the bearing. A housing of the locating bearing design can also accommodate a split spherical roller bearing, replacing an unsplit bearing.
The non-locating bearing design is fitted with unsplit bearings. The bearing outer ring can be displaced axially in a bearing bush.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
High-pressure packing as standard
Plummer block housings KPG and KPGZ are sealed by means of high-pressure packing. These allow shaft misalignment of up to 1,5°. Profiled rubber seals are available by agreement as special seals ➤ Figure.
|
Seals for plummer block housings KPG and KPGZ
|
 |
Scope of delivery
In the case of split plummer block housings KPG and KPGZ, the seals are included in the scope of delivery. The rolling bearing and, if necessary, the adjustment sleeve must be ordered separately.
Since customer-specific solutions using these housings are developed for each converter application, we recommend consulting our engineering service before ordering these housings.
Further information
Detailed information on split plummer block housings KPG and KPGZ: Bearing Housings GK 1, and Rolling Bearing Arrangements for ConvertersTPI 148.
Split plummer block housings LOE
Housings for bearing arrangements running at high speeds
Split plummer block housings LOE are designed for oil lubrication. They are suitable for high speed bearing arrangements, for example in fans ➤ Figure.
|
Split plummer block housing LOE |
 |
Suitable bearings
Shaft diameters from 50 mm to 240 mm
The dimensions of split plummer block housings LOE are matched to spherical roller bearings 222 and 223 ➤ Table. The housings LOE2 and LOE3 are intended for bearings with a cylindrical bore, while the housings LOE5 and LOE6 are intended for bearings with a tapered bore and adapter sleeve. The range of shaft diameters is between 50 mm and 240 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
22217..-K to 22248..-K |
|
22314..-K to 22336..-K |
|
22214 to 22248 |
|
22310 to 22336 |
Materials
Flake graphite cast iron as standard
Material for housing body:
- flake graphite cast iron (standard)
- spheroidal graphite cast iron
- cast steel
Locating and non-locating bearings
Housings in locating bearing design and non‑locating bearing design
The housings are supplied as a locating bearing design or non-locating bearing design. In the locating bearing, the bearing is clamped between the housing covers. In the non-locating bearing, the bearing can align itself axially, since the covers have shorter centring collars.
Lubrication
Oil lubrication
Suitable lubrication method:
- oil lubrication
Sealing
Housing designs with and without cover
Plummer block housings LOE of design A are intended for the bearing arrangements of shaft ends. One side is closed by a cover and the other side is sealed against the shaft. Design B is intended for continuous shafts, in which case the housing is sealed against the shaft on both sides.
Labyrinth seals
The seal used here is a labyrinth seal ➤ Figure. The labyrinth rings are unsplit. The grease chamber in the labyrinth can be relubricated. The labyrinth seal allows shaft misalignment of up to 0,25° in both directions and is suitable for oil lubrication.
|
Labyrinth seal for plummer block housing LOE |
 |
Scope of delivery
In the case of split plummer block housings LOE, the seals and cover (for a housing design closed on one side) are included in the scope of delivery. The rolling bearing and, if necessary, the adapter sleeve or locknut must be ordered separately.
Further information
Detailed information on split plummer block housings LOE: Bearing Housings GK 1.
Plummer block housing units VRE3
Housing units for wide range of applications
Plummer block housing units VRE3 were originally developed for fan applications, for the flying bearing arrangement of high speed impellers ➤ Figure. The units are now used wherever there is a requirement for a precise bearing arrangement that can be easily mounted, for example in conveying equipment, test rigs, machinery for process engineering, belt transmissions, laboratory machines, textile machinery and feed equipment.
|
Plummer block housing units VRE3 |
 |
Complete housing units
Completely assembled units
Plummer block housing units VRE3 comprise a tubular plummer block housing VR3 with seals and a shaft VRW3 supported in rolling bearings of dimension series 3. The units are completely assembled and the bearings are greased. The units can therefore be integrated directly in existing machinery without substantial preparation.
Suitable bearings
Shaft diameters from 25 mm to 120 mm
Plummer block housing units VRE3 are fitted, depending on their design, with various combinations of deep groove ball bearings, cylindrical roller bearings and angular contact ball bearings ➤ Table. Only bearings with a cylindrical bore are fitted. The range of shaft diameters is between 25 mm and 120 mm.
Plummer block housing units and bearings
|
Plummer block housing unit |
Bearing |
||
|---|---|---|---|
|
Quantity |
Bearing type |
Size |
|
|
VRE305A – VRE324A |
2 |
Deep groove ball bearings |
6305 – 6324 |
|
VRE305B – VRE324B |
1 |
Cylindrical roller bearings |
NJ305E – NJ324E |
| VRE305B – VRE324B |
1 |
Deep groove ball bearings |
6305 – 6324 |
|
VRE305C – VRE324C |
1 |
Cylindrical roller bearings |
NU305E – NU324E |
| VRE305C – VRE324C |
2 |
Angular contact ball bearings |
7305B.UA – 7324B.UA |
|
VRE305D – VRE324D |
1 |
Cylindrical roller bearings |
NU305E – NU324E |
| VRE305D – VRE324D |
1 |
Deep groove ball bearings |
6305 – 6324 |
|
VRE305E – VRE324E |
2 |
Cylindrical roller bearings |
NU305E – NU324E |
| VRE305E – VRE324E |
1 |
Deep groove ball bearings |
6305 – 6324 |
|
VRE305F – VRE316F |
2 |
Deep groove ball bearings |
6305 – 6316 |
Materials
Flake graphite cast iron
Material for housing body:
- flake graphite cast iron
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Combined seals comprising felt seal and V ring
Plummer block housing units VRE3 are sealed on both sides by a combined seal comprising a felt seal and V ring ➤ Figure. As a result, effective sealing against the ingress of contamination and the escape of lubricant is achieved. The oil-soaked felt strips are inserted in the slots in the covers on the housing. The external V rings are made from NBR and are suitable for temperatures of up to +100 °C. If a circumferential velocity of more than 8 m/s is present, axial support of the V rings is necessary. At or above 12 m/s, the seal lip lifts and the V ring then acts as a splash ring.
|
Felt seal with V ring for plummer block housing units VRE3
|
 |
Scope of delivery
Plummer block housing units VRE3 are ideally ordered as complete units. The housing body, shaft, seals and rolling bearings are then included in the scope of delivery. It is also possible, however, to order the housing body (with seals), the shaft and the rolling bearings separately.
Further information
Detailed information on plummer block housings VRE3: Bearing Housings GK 1.
Unsplit plummer block housings BND
Housings for very high loads
Unsplit plummer block housings BND are suitable for very high loads ➤ Figure. The housings, which were originally developed for belt conveyors, can also be beneficially used in materials processing, for example in hard crushers, sugar cane mill drives and rotor shafts in wind turbines.
|
Unsplit plummer block housings BND |
 |
Suitable bearings
Shaft diameters from 60 mm to 420 mm
The dimensions of unsplit plummer block housings BND are matched to spherical roller bearings 222, 230, 231 and 232 and toroidal roller bearings C22, C30, C31 and C32 ➤ Table. The range of shaft diameters is between 60 mm and 420 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
22213..-K to 22284..-K |
|
23024..-K to 23084..-K |
|
23122..-K to 23184..-K |
|
23222..-K to 23284..-K |
|
22213 to 22284 |
|
23024 to 23084 |
|
23122 to 23184 |
|
23222 to 23284 |
| Toroidal roller bearings | |
|
C2212..-K to C2284..-K |
|
C3022..-K to C3084..-K |
|
C3120..-K to C3184..-K |
|
C3222..-K to C3284..-K |
|
C2212 to C2284 |
|
C3022 to C3084 |
|
C3120 to C3184 |
|
C3222 to C3284 |
Materials
Spheroidal graphite cast iron as standard
Material for housing body:
- cast steel
- spheroidal graphite cast iron (standard)
Locating and non-locating bearings
Housings in locating bearing design and non‑locating bearing design
The housings are supplied as a locating bearing design or non-locating bearing design. In the locating bearing, the bearing is clamped between the housing covers. In the non-locating bearing, the bearing can align itself axially, since the covers have shorter centring collars.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Housing designs with and without cover
Plummer block housings BND of design A are intended for the bearing arrangements of shaft ends. One side is closed by a cover and the other side is sealed against the shaft. Design B is intended for continuous shafts, in which case the housing is sealed against the shaft on both sides.
Labyrinth and Taconite seals
Labyrinth seals (suffix Y) or Taconite seals (suffix T) can be used ➤ Table. Where shafts of constant diameter are used, the seals are located on the shaft by means of slotted conical clamping rings made from laminated fabric. The labyrinth rings, Taconite seals and covers are unsplit.
The seals allow shaft misalignment of up to 0,5° in both directions and are suitable for grease lubrication.
Labyrinth and Taconite seal
|
Sealing |
Labyrinth seal, |
Taconite seal, |
||
|---|---|---|---|---|
 |
 |
|||
|
Designation |
Suffix Y |
Suffix T |
||
|
Suitability for sealing against |
||||
|
dust |
+ |
++ |
||
|
fine, solid particles |
+ |
++ |
||
|
coarse, solid particles |
+ |
++ |
||
|
slivers |
++ |
++ |
||
|
spray liquids |
‒ |
+ |
||
|
Operating limits |
||||
|
Long term temperature |
°C |
–30 to +100 |
–30 to +100 |
|
| Long term temperature |
°F |
–22 to +210 |
–22 to +210 |
|
|
Circumferential velocity |
m/s |
No restriction |
≦12 |
|
|
Misalignment |
° |
≦0,5 |
≦0,5 |
|
|
Low friction |
++ |
+ |
||
|
Axial shaft displacement (suitability as non-locating bearing) |
+ |
+ |
||
|
Vertical arrangement |
‒ |
‒ |
||
|
Suitability |
+ |
++ |
||
|
Suitability |
‒ |
‒ |
||
|
Compatibility with sunlight |
++ |
++ |
||
|
Preconditions |
||||
|
Tolerance class1) |
h8 (h9) |
h8 (h9) |
||
|
Shaft roughness |
μm |
Ra 3,2 |
Ra 3,2 |
|
- The envelope requirement Ⓔ applies
Scope of delivery
In the case of unsplit plummer block housings BND, the seals and cover (for a housing design closed on one side) are included in the scope of delivery. The rolling bearing and, if necessary, the adapter sleeve must be ordered separately.
Further information
Detailed information on unsplit plummer block housings BND: Bearing Housings GK 1.
Take-up housings SPA
Housings for tensioner drum bearing arrangements
Take-up housings SPA are combined with FAG spherical roller bearings, seals and grease filling to form bearing arrangement units for very high loads ➤ Figure. The housings are unsplit. They were developed specifically for tensioner drum bearing arrangements in belt conveyor plant. There is a yoke-shaped drawbar eye for attachment to the tensioning device. The housing is guided by means of rails in the belt support structure.
|
Take-up housing SPA |
 |
Suitable bearings
Shaft diameters from 50 mm to 400 mm
The dimensions of take-up housings SPA are matched to spherical roller bearings 222..-K, 230..-K, 231..-K and 232..-K ➤ Table. The range of shaft diameters is between 50 mm and 400 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
22211..-K to 22228..-K |
|
23028..-K to 23056..-K |
|
23132..-K to 23176..-K |
|
23222..-K to 23284..-K |
Materials
Cast steel as standard
Material for housing body:
- cast steel (standard)
- spheroidal graphite cast iron
Locating and non-locating bearings
Housings in locating bearing design and non‑locating bearing design
The housings are supplied as a locating bearing design or non-locating bearing design. In the locating bearing, the bearing is clamped between the housing covers. In the non-locating bearing, the bearing can align itself axially, since the covers have shorter centring collars.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Housing designs with and without cover
Take-up housings SPA of design A are intended for the bearing arrangements of shaft ends. One side is closed by a cover and the other side is sealed against the shaft. Design B is intended for continuous shafts, in which case the housing is sealed against the shaft on both sides.
Labyrinth and Taconite seals
Labyrinth seals (suffix Y) or Taconite seals (suffix T) can be used ➤ Table. Where shafts of constant diameter are used, the seals are located on the shaft by means of slotted conical clamping rings made from laminated fabric. The labyrinth rings, Taconite seals and covers are unsplit.
The seals allow shaft misalignment of up to 0,5° in both directions and are suitable for grease lubrication.
Labyrinth and Taconite seal
|
Sealing |
Labyrinth seal, |
Taconite seal, |
||
|---|---|---|---|---|
 |
 |
|||
|
Designation |
Suffix Y |
Suffix T |
||
|
Suitability for sealing against |
||||
|
dust |
+ |
++ |
||
|
fine, solid particles |
+ |
++ |
||
|
coarse, solid particles |
+ |
++ |
||
|
slivers |
++ |
++ |
||
|
spray liquids |
‒ |
+ |
||
|
Operating limits |
||||
|
Long term temperature |
°C |
–30 to +100 |
–30 to +100 |
|
| Long term temperature |
°F |
–22 to +210 |
–22 to +210 |
|
|
Circumferential velocity |
m/s |
No restriction |
≦12 |
|
|
Misalignment |
° |
≦0,5 |
≦0,5 |
|
|
Low friction |
++ |
+ |
||
|
Axial shaft displacement (suitability as non-locating bearing) |
+ |
+ |
||
|
Vertical arrangement |
‒ |
‒ |
||
|
Suitability |
+ |
++ |
||
|
Suitability |
‒ |
‒ |
||
|
Compatibility with sunlight |
++ |
++ |
||
|
Preconditions |
||||
|
Tolerance class1) |
h8 (h9) |
h8 (h9) |
||
|
Shaft roughness |
μm |
Ra 3,2 |
Ra 3,2 |
|
- The envelope requirement Ⓔ applies.
In the case of take-up housings SPA, the seals and cover (for a housing design closed on one side) are included in the scope of delivery. The rolling bearing and, if necessary, the adapter sleeve must be ordered separately.
Scope of delivery
In the case of take-up housings SPA, the seals and cover (for a housing design closed on one side) are included in the scope of delivery. The rolling bearing and, if necessary, the adapter sleeve must be ordered separately.
Further information
Detailed information on take-up housings SPA: Bearing Housings GK 1.
Flanged housings F112
Housings for wide range of applications
Flanged housings F112 can be used in a wide variety of applications, for example in machine structures and support structures ➤ Figure.
|
Flanged housing F112 |
 |
Suitable bearings
Shaft diameters from 20 mm to 60 mm
The dimensions of flanged housings F112 are matched to self-aligning ball bearings 112 with an extended inner ring ➤ Table. The range of shaft diameters is between 20 mm and 60 mm.
Bearing type and sizes
|
Bearing type |
Size |
|---|---|
| Self-aligning ball bearings | |
|
11204 to 11212 |
Materials
Flake graphite cast iron
Material for housing body:
- flake graphite cast iron
Locating bearing
Housing in locating bearing design only
In flanged housings F112, the self-aligning ball bearing is clamped between the abutment shoulder in the housing and the cover. As a result, the bearing acts as a locating bearing.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Felt seals
Flanged housings F112 are sealed by means of felt seals ➤ Figure. The felt seals allow shaft misalignment of up to 0,5° in both directions and are suitable for grease lubrication. The oil-soaked felt strips must be inserted in the associated slots in the housing.
|
Felt seal for flanged housing F112 |
 |
Scope of delivery
In the case of flanged housings F112, the felt strips for sealing the housing are included in the scope of delivery. The rolling bearing must be ordered separately.
Further information
Detailed information on flanged housings F112: Bearing Housings GK 1.
Flanged housings F5
Housings for wide range of applications
Flanged housings F5 can be used in a wide variety of applications ➤ Figure.
|
Flanged housing F5 |
 |
Suitable bearings
Shaft diameters from 20 mm to 100 mm
Flanged housings F5 are intended for fitting with self-aligning ball bearings, barrel roller bearings and spherical roller bearings with a tapered bore that are located on the shaft using adapter sleeves ➤ Table. The range of shaft diameters is between 20 mm and 100 mm.
Bearing types and sizes
|
Bearing type |
Size |
|---|---|
| Spherical roller bearings | |
|
22205..-K to 22222..-K |
| Self-aligning ball bearings | |
|
1205-K to 1222-K |
|
2205-K to 2222-K |
| Barrel roller bearings | |
|
20205-K to 20222-K |
Materials
Flake graphite cast iron as standard
Material for housing body:
- flake graphite cast iron (standard)
- spheroidal graphite cast iron
Locating and non-locating bearings
Locating bearing arrangement by means of locating rings
The bearing seats in the housing are machined such that the bearings are movable and can thus function as non-locating bearings. Locating bearing arrangements can be achieved by the insertion of locating rings. For housings F505 to F513, locating rings FE are used, while for housings F515 to F522, locating rings FRM are used. The quantity of locating rings required is 1 or 2. Two rings are inserted on both sides of the bearing, while a single ring is inserted on the side with the adapter sleeve nut.
Lubrication
Grease lubrication
Suitable lubrication method:
- grease lubrication
Sealing
Housing designs with and without cover
Flanged housings F5 of design A are intended for the bearing arrangements of shaft ends. One side is closed by a cover and the other side is sealed against the shaft. Design B is intended for continuous shafts, in which case the housing is sealed against the shaft on both sides.
Felt seals
Flanged housings F5 are sealed by means of felt seals ➤ Figure. The felt seals allow shaft misalignment of up to 0,5° in both directions and are suitable for grease lubrication. The oil-soaked felt strips must be inserted in the associated slots in the housing.
|
Felt seal for flanged housing F5 |
 |
Scope of delivery
In the case of flanged housings F5, the felt strips for sealing the housing as well as the cover (for a housing design closed on one side) are included in the scope of delivery. Locating rings must be ordered separately. The rolling bearing and the adapter sleeve must also be ordered separately.
Further information
Detailed information on flanged housings F5: Bearing Housings GK 1.
Legal notice regarding data freshness
The further development of products may also result in technical changes to catalogue products
Of central interest to Schaeffler is the further development and optimisation of its products and the satisfaction of its customers. In order that you, as the customer, can keep yourself optimally informed about the progress that is being made here and with regard to the current technical status of the products, we publish any product changes which differ from the printed version in our electronic product catalogue.
We therefore reserve the right to make changes to the data and illustrations in this catalogue. This catalogue reflects the status at the time of printing. More recent publications released by us (as printed or digital media) will automatically precede this catalogue if they involve the same subject. Therefore, please always use our electronic product catalogue to check whether more up-to-date information or modification notices exist for your desired product.
Further information
In addition to the data in this chapter, the following chapters must also be observed in the selection of a housing:
- Lubrication ➤ section
Further information:
- Comprehensive housing catalogue GK 1http://www.schaeffler.de/std/1B63
- Electronic housing selection wizard http://www.schaeffler.de/std/1B6A