Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - NP-31T
Part #:705384
Catalog #:NP-31T
KEY FEATURES
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Skwezloc® concentric locking for near perfect concentricity
- 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
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Product Specifications
Dimensions
| Base Width (in): | 2.38 in | Overall Width (in): | 2.38 in |
| Overall Height (in): | 4.56 in | Overall Length (in): | 8.13 in |
| Bolt Size (in): | 5/8 in | Bore Diameter (in): | 1.9375 in |
| Base to Center Height (in): | 2.2500 in | Foot Height (in): | 0.75 in |
| Length Through Bore (in): | 2.09 in | Bolt Spacing Min (in): | 6 in |
| Bolt Spacing Max (in): | 6.5 in | Centerline to Outermost Bearing Face (in): | 1.34 in |
Technical Specifications
| Housing Base: | Solid | Rolling Element: | Ball Bearing |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Housing Color: | Black | Outer Ring Land Profile: | Standard |
| Misalignment Type: | Static Only | Cage Material: | PPS - Polyphenylene Sulfide |
| Housing Type: | Pillow Block, Two Bolt | Seal Type: | Felt Labyrinth Seal |
| Housing Style: | Pillow Block | Locking Collar Outside Diameter (in): | 3.38 in |
| Inner Race Heat Treat Method: | Zone-Hardened | Ability to Relubricate: | Yes |
| Inner Ring Outside Diameter (in): | 2.469 in | Bearing Type: | Standard Duty |
| Dynamic Load Rating (lb): | 7,889 lb | Vibration Frequency Roller Spin: | 0.0445 cps |
| Bearing Insert Finish: | Black Oxide | Vibration Frequency Fundamental Train: | 0.0068 cps |
| Vibration Frequency Outer Ring Defect: | 0.0683 cps | Grease Fitting Thread Size: | 1/8 NPT |
| Static Load Rating (lb): | 5,216 lb | Fixed vs. Expansion: | Fixed |
| Shaft Locking Type: | Concentric | Misalignment Capability: | ±2.0° Misalignment - Static Only |
| Cage Type: | Land Riding Retainer | Radial Clearance: | Standard |
| Maximum Speed (RPM): | 5000 rpm | End Cap Available: | No |
| Housing Coating: | Powder Coated | Housing Material: | Cast Iron |
| Lubricant: | Lithium Complex NLGI 2 Grease | Vibration Frequency Inner Ring Defect: | 0.0984 cps |
| Size Code: | 2-115 | Max Operating Temperature (F): | 220 °F |
| Insert: | 2-115T | Bearing Insert Material: | 52100 Bearing Steel |
| Base Length (in): | 8.13 in |
General Specifications
| UPC: | 662461029749 | Weight: | 8.98 LB |
| Packaged Length: | 5.19 IN | Packaged Width: | 9.00 IN |
| Packaged Height: | 2.38 IN | HTC: | 8483.20.8040 |
| Country of Origin: | Mexico |

