Home / Categories / Bearings / Mounted / Mounted Tapered Roller Bearings / Pillow Blocks / RPB 308-4
Sealmaster RPB 308-4
PILLOW BLK STK
Series
RPB
Overall Length (in)
13.75 in
Bore Size - Inch
3.5
Bolt Size (in)
0.75 in
Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.
Product Overview
- Heavy duty tapered roller bearings with steel cage for radial, thrust and combined loading
- Race-mounted felt-lined flinger seal
- Double-collar interlock with 120° spacing setscrew lock, diamond faceted setscrews
- Powder coat epoxy 4-bolt split cast iron housing
| Part Number | 550878 |
| Brand | Sealmaster |
| Overall Length (in) | 13.75 in |
| Bore Size - Inch | 3.5 |
| Bolt Size (in) | 0.75 in |
| Overall Width (in) | 5 in |
| Bolt Center-to-Center Length (in) | 11.03 in |
| Base Width (in) | 4.5 in |
| Overall Height (in) | 7.75 in |
| Bore Size (in) | 3.5000 in |
| Bolt Center Max (in) | 11.5 in |
| Centerline to Front Face (in) | 2.5 in |
| Bolt Center Min (in) | 10.563 in |
| Inner Race Length (in) | 5 in |
| Foot Height (in) | 2.063 in |
| Base to Center Height (in) | 3.75 in |
| Collar Outer Diameter (in) | 5.438 in |
| Seal Type | Felt Labyrinth Seal |
| Measure Units | Inch |
| Expansion | No |
| Housing Material | Cast Iron |
| Housing Type | Pillow Block, Four Bolt |
| Rolling Element | Tapered Roller |
| Insert Material | 52100 Bearing Steel |
| Housing Base | Solid |
| Speed (Max) | 1500 |
| Misalignment | ±3.0° Misalignment - Static Only |
| Bore Shape | Straight |
| Locking Type | Double Collar Mount |
| Radial Dynamic Load Capacity (lb) | 15,320 lb |
| Housing Construction | Split Two Piece |
| Internal Clearance | Standard |
| Replaceable Insert | Yes |
| Outer Ring Land Profile | Standard |
| Housing Color | Gray |
| Retainer Material | Steel |
| Misalignment Type | Static Only |
| Platform | RPB Series |
| End Cap | No |
| Bearing Insert Coating | Uncoated |
| Series | RPB |
| Grease Fitting Thread Size | 1/8 NPT |
| Ability to Relubricate | Yes |
| Insert Number | RCI-308 |
| Maximum Operating Temperature (F) | 220 °F |
| Housing Style | Pillow Block |
| Inner Race Heat Treat Method | Case Carburized Inner Ring |
| Duty/Series | Standard |
| Lubrication Type | Lithium; EP; NLGI#2 |
| HTC | 8483.20.8080 |
| Country of Origin | United States of America |
Always verify dimensions, load ratings, material, and seal type before ordering.
| Brandi | Sealmaster |
| Mfg. Catalog Numberi | RPB 308-4 |
| Mfg. Part Numberi | 550878 |
| GDS #i | GDS-114068 |
| Categoryi | Bearings / Mounted / Mounted Tapered Roller Bearings / Pillow Blocks |
| UPCi | 662288481577 |
