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 |
40 mm
|
Bore diameter |
|---|---|---|
| d1 |
≈ 51.8 mm
|
Shoulder diameter of inner ring |
| Dc |
88 mm
|
Centring diameter |
| Ha |
6 mm
|
Groove height for backseal |
| A |
44 mm
|
Base width |
| A1 |
44 mm
|
Top width |
| A5 |
73.9 mm
|
Width including end cover |
| B |
40.7 mm
|
Width of inner ring |
| B1 |
40.7 mm
|
Overall bearing width |
| B4 |
10 mm
|
Distance from locking device side face to thread centre |
| H |
49.2 mm
|
Height of spherical seat centre |
| H1 |
20 mm
|
Foot height |
| H2 |
98.2 mm
|
Overall height |
| J |
137 mm
|
Distance between attachment bolts |
| J |
max. 140 mm
|
Distance between attachment bolts |
| J |
min. 134 mm
|
Distance between attachment bolts |
| L |
179 mm
|
Overall length |
| N |
14.2 mm
|
Diameter of attachment bolt hole |
| N1 |
17.4 mm
|
Length of attachment bolt hole |
| s1 |
30.2 mm
|
Distance from locking device side face to raceway centre |
| Basic dynamic load rating | C |
24.7 kN
|
|---|---|---|
| Basic static load rating | C0 |
19 kN
|
| Fatigue load limit | Pu |
0.8 kN
|
| Limiting speed |
500 r/min
|
| Mass bearing unit |
0.87 kg
|
| Set screw | G2 |
M8x1
|
|---|---|---|
| Hexagonal key size for set screw |
4 mm
|
|
| Recommended tightening torque for set screw |
6.5 N·m
|
|
| Recommended diameter for attachment bolts, mm | G |
12 mm
|
| Recommended diameter for attachment bolts, inch | G |
0.5 in
|
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