Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - Reduced Maintenance - Lubed for Life - NP-31 RM
Part #:715751
Catalog #:NP-31 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
- Felt labyrinth seal and flinger for dry and dusty environment
- 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 Height (in): | 4.56 in | Base Width (in): | 2.38 in |
| Overall Length (in): | 8.13 in | Overall Width (in): | 2.38 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 Max (in): | 6.5 in |
| Bolt Spacing Min (in): | 6 in | Centerline to Outermost Bearing Face (in): | 1.281 in |
Technical Specifications
| Housing Base: | Solid | Rolling Element: | Ball Bearing |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Outer Ring Land Profile: | Tapered Lands | Misalignment Type: | Static Only |
| Options: | Reduced Maintenance - Lubed for Life | Housing Color: | Black |
| 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 |
| Lubricant: | Lithium Complex NLGI 2 Grease | Maximum Speed (RPM): | 3550 rpm |
| Vibration Frequency Fundamental Train: | 0.0068 cps | Insert: | 2-115 RM |
| Bearing Insert Finish: | Black Oxide | Max Operating Temperature (F): | 220 °F |
| Bearing Type: | Standard Duty | Shaft Locking Type: | Set Screw |
| Fixed vs. Expansion: | Fixed | Inner Ring Outside Diameter (in): | 2.469 in |
| Cage Type: | Land Riding Retainer | Housing Coating: | Powder Coated |
| Dynamic Load Rating (lb): | 7,889 lb | Size Code: | 2-115 |
| Base Length (in): | 8.13 in | Vibration Frequency Inner Ring Defect: | 0.0984 cps |
| End Cap Available: | No | Static Load Rating (lb): | 5,216 lb |
| Housing Material: | Cast Iron | Bearing Insert Material: | 52100 Bearing Steel |
| Grease Fitting Thread Size: | 1/8 NPT | Vibration Frequency Outer Ring Defect: | 0.0683 cps |
| Misalignment Capability: | ±2.0° Misalignment - Static Only | Radial Clearance: | Standard |
| Vibration Frequency Roller Spin: | 0.0445 cps |
General Specifications
| UPC: | 662461333815 | Weight: | 8.05 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 |