Pillow (plummer) block bearing units consisting of an insert bearing mounted in a composite or cast metal housing that can be bolted to a support surface. In addition to being part of a unit, some pillow block housings for insert bearings are available as separate components. The SKF assortment includes units that are compliant with several industrial standards and meet many requirements.
| Compliance with standard |
Not standardized
|
| Purpose specific |
For food and beverage applications
|
| Material, housing |
Composite for the SKF Food Line
|
| Sealing, bearing |
Seal on both sides and flinger on one side
|
| Sealing type, bearing |
Contact, gutter
|
| Sealing, unit |
End cover and back seal
|
| Coating |
Without
|
| d |
20 mm
|
Bore diameter |
|---|---|---|
| d1 |
≈ 28.2 mm
|
Shoulder diameter of inner ring |
| Dc |
52 mm
|
Centring diameter |
| Ha |
6 mm
|
Groove height for backseal |
| A |
36 mm
|
Base width |
| A1 |
36 mm
|
Top width |
| A5 |
29.6 mm
|
Width including end cover |
| B |
25.3 mm
|
Width of inner ring |
| B1 |
25.3 mm
|
Overall bearing width |
| B4 |
4.5 mm
|
Distance from locking device side face to thread centre |
| H |
33.3 mm
|
Height of spherical seat centre |
| H1 |
17 mm
|
Foot height |
| H2 |
64.6 mm
|
Overall height |
| J |
95 mm
|
Distance between attachment bolts |
| J |
max. 98 mm
|
Distance between attachment bolts |
| J |
min. 92 mm
|
Distance between attachment bolts |
| L |
129 mm
|
Overall length |
| N |
11.5 mm
|
Diameter of attachment bolt hole |
| N1 |
14.3 mm
|
Length of attachment bolt hole |
| s1 |
18.3 mm
|
Distance from locking device side face to raceway centre |
| Basic dynamic load rating | C |
10.8 kN
|
|---|---|---|
| Basic static load rating | C0 |
6.55 kN
|
| Fatigue load limit | Pu |
0.28 kN
|
| Limiting speed |
700 r/min
|
| Mass bearing unit |
0.29 kg
|
| Set screw | G2 |
M6x0.75
|
|---|---|---|
| Hexagonal key size for set screw |
3 mm
|
|
| Recommended tightening torque for set screw |
4 N·m
|
|
| Recommended diameter for attachment bolts, mm | G |
10 mm
|
| Recommended diameter for attachment bolts, inch | G |
0.375 in
|
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