Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - Reduced Maintenance - Lubed for Life - NP-31C RM
Part #:715918
Catalog #:NP-31C RM
KEY FEATURES
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Zone hardened inner ring with 120° spacing setscrew locking with diamond faceted setscrews
- Single lip contact
- Unique land riding retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication.
- Sealmaster® exclusive lock pin and dimple for direct lubrication and anti-rotation
- Reduced maintenance design with plug and includes Sealmaster® Tapered Lands ensures that lubricant will be easily redirected back to the raceway.
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Product Specifications
Dimensions
| Overall Width (in): | 2.38 in | Base Width (in): | 2.38 in |
| Overall Length (in): | 8.13 in | Overall Height (in): | 4.56 in |
| Bolt Size (in): | 5/8 in | Bore Diameter (in): | 1.9375 in |
| Foot Height (in): | 0.75 in | Base to Center Height (in): | 2.2500 in |
| Length Through Bore (in): | 2.031 in | Bolt Spacing Min (in): | 6 in |
| Bolt Spacing Max (in): | 6.5 in | Centerline to Outermost Bearing Face (in): | 1.281 in |
Technical Specifications
| Rolling Element: | Ball Bearing | Housing Base: | Solid |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Misalignment Type: | Static Only | Options: | Reduced Maintenance - Lubed for Life |
| Housing Color: | Black | Outer Ring Land Profile: | Tapered Lands |
| Cage Material: | PPS - Polyphenylene Sulfide | Housing Type: | Pillow Block, Two Bolt |
| Seal Type: | Felt Labyrinth Seal | Housing Style: | Pillow Block |
| Ability to Relubricate: | No | Inner Race Heat Treat Method: | Zone-Hardened |
| Radial Clearance: | Standard | Bearing Insert Material: | 52100 Bearing Steel |
| Base Length (in): | 8.13 in | Vibration Frequency Outer Ring Defect: | 0.0683 cps |
| Shaft Locking Type: | Set Screw | Vibration Frequency Roller Spin: | 0.0445 cps |
| Vibration Frequency Fundamental Train: | 0.0068 cps | Lubricant: | Lithium Complex NLGI 2 Grease |
| Maximum Speed (RPM): | 3550 rpm | Bearing Type: | Standard Duty |
| Vibration Frequency Inner Ring Defect: | 0.0984 cps | Inner Ring Outside Diameter (in): | 2.469 in |
| Housing Coating: | Powder Coated | Static Load Rating (lb): | 5,216 lb |
| Fixed vs. Expansion: | Fixed | Misalignment Capability: | ±2.0° Misalignment - Static Only |
| Grease Fitting Thread Size: | 1/8 NPT | Bearing Insert Finish: | Black Oxide |
| Housing Material: | Cast Iron | Insert: | 2-115C RM |
| Max Operating Temperature (F): | 220 °F | Cage Type: | Land Riding Retainer |
| End Cap Available: | No | Size Code: | 2-115 |
| Dynamic Load Rating (lb): | 7,889 lb |
General Specifications
| UPC: | 662461333822 | Weight: | 7.90 LB |
| Packaged Length: | 9.00 IN | Packaged Width: | 5.19 IN |
| Packaged Height: | 2.38 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |