P2B 008-RM
Pillow block ball bearing unit with narrow inner ring and set screw locking, North American standardsPillow (plummer) block ball bearing units consist of an insert bearing mounted in a cast iron housing that can be bolted to a support surface. This variant is suitable for applications where the direction of rotation is constant or alternating. It has a narrow inner ring extended on one side and is locked onto the shaft by tightening two set screws on the inner ring, making it easy to mount. The units are compliant with North American standards.
- Standard centre height
- Ready to mount
- Lubricated and sealed bearing
- Quick locking onto the shaft
- Narrow inner ring for tight operating spaces
Description
| Compliance with standard | North American standard |
| Purpose specific | For material handling applications |
| Material, housing | Cast iron |
| Sealing, bearing | Seal on both sides |
| Sealing type, bearing | Contact, standard |
| Sealing, unit | Without |
| Coating | Without |
Dimensions
| d | 12.7 mm | Bore diameter |
|---|---|---|
| d1 | ≈ 24.2 mm | Shoulder diameter of inner ring |
| A | 32.2 mm | Base width |
| A1 | 17.8 mm | Top width |
| B | 22.1 mm | Width of inner ring |
| B1 | 22.1 mm | Overall bearing width |
| B4 | 4 mm | Distance from locking device side face to thread centre |
| H | 30.16 mm | Height of spherical seat centre |
| H1 | 11.91 mm | Foot height |
| H2 | 56.36 mm | Overall height |
| J | 92.08 mm | Distance between attachment bolts |
| J | max. 104.785 mm | Distance between attachment bolts |
| J | min. 79.375 mm | Distance between attachment bolts |
| L | 138.83 mm | Overall length |
| N | 11.11 mm | Diameter of attachment bolt hole |
| N1 | 22.23 mm | Length of attachment bolt hole |
| s1 | 15.9 mm | Distance from locking device side face to raceway centre |
| RG | 1/4-28 UNF | Housing thread for the grease fitting |
|---|---|---|
| R1 | 1.2 mm | Axial position of the housing thread |
| Rα | 45 ° | Angular position of the housing thread |
| DN | 6.579 mm | Diameter of head sphere of grease fitting |
|---|---|---|
| SWN | 7.938 mm | Hexagonal key size for the grease fitting |
| GN | 1/4-28 SAE-LT | Thread of grease fitting |
Calculation data
| Basic dynamic load rating | C | 9.56 kN |
|---|---|---|
| Basic static load rating | C0 | 4.75 kN |
| Fatigue load limit | Pu | 0.2 kN |
| Limiting speed | 9 500 r/min | |
Limiting speed with shaft tolerance h6 |
Mass
| Mass bearing unit | 0.47 kg |
Mounting information
| Set screw | G2 | #10-32 UNF |
|---|---|---|
| Hexagonal key size for set screw | 2.381 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 |
