These three-bolt flanged ball bearing units are designed especially for the food and beverage industries. They are chemical resistant, lightweight and strong. The bearing unit consists of an insert bearing, with an extended inner ring and set screw locking, and is suitable for applications where the direction of rotation is constant or alternating. The bearing is mounted in a composite housing, which can be bolted to a machine wall or frame. Ball bearing units can accommodate moderate initial misalignment, but normally do not permit axial displacement.
| Compliance with standard |
ISO with boundary dimension deviations
|
| Purpose specific |
For food and beverage applications
|
| Material, housing |
Composite for the SKF Food Line
|
| Sealing, bearing |
Seal and flinger on both sides
|
| Sealing type, bearing |
Contact, multiple
|
| Sealing, unit |
Optional end cover
|
| Coating |
Zinc-coated bearing
|
| d |
31.75 mm
|
Bore diameter |
|---|---|---|
| d1 |
≈ 46.1 mm
|
Outer diameter of inner ring |
| Ha |
6 mm
|
Groove height for backseal |
| A |
36.5 mm
|
Overall width |
| A1 |
16.1 mm
|
Flange width |
| A5 |
28.3 mm
|
Standout of end cover |
| B |
42.9 mm
|
Width of inner ring |
| B4 |
6 mm
|
Distance from locking device side face to thread centre |
| J |
50.8 mm
|
Distance between attachment bolt holes |
| J1 |
31.8 mm
|
Distance between attachment bolt holes |
| H |
157 mm
|
Overall height |
| H1 |
60.3 mm
|
Radial position of the spherical seat |
| L |
95 mm
|
Overall length |
| L1 |
89 mm
|
Flange length |
| N |
13.1 mm
|
Diameter of attachment bolt hole |
| s1 |
25.4 mm
|
Distance from locking device side face to raceway centre |
| T |
47.1 mm
|
Overall unit width |
| Basic dynamic load rating | C |
25.5 kN
|
|---|---|---|
| Basic static load rating | C0 |
15.3 kN
|
| Fatigue load limit | Pu |
0.655 kN
|
| Limiting speed |
3 200 r/min
|
|
|
Limiting speed with shaft tolerance h6
|
| Mass bearing unit |
0.77 kg
|
| Set screw | G2 |
5/16-24 UNF
|
|---|---|---|
| Hexagonal key size for set screw |
3.969 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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