Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - NPMH-31T
Part #:716572
Catalog #:NPMH-31T
KEY FEATURES
- Cast iron housed, extended inner ring bearing with ball riding nylon retainer
- Designed to accommodate optional closed or open end to allow users to better conform OSHA requirements for personal protection
- Skwezloc® Concentric locking for near perfect concentricity
- Single lip contact seal and flinger
- Supplied sealed for life with optional lubrication fitting in the box
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Product Specifications
Dimensions
| Base Width (in): | 2.38 in | Overall Width (in): | 2.38 in |
| Overall Length (in): | 8.13 in | Overall Height (in): | 4.5 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): | 2.09 in | Centerline to Outermost Bearing Face (in): | 1.34 in |
| Bolt Spacing Min (in): | 6 in | Bolt Spacing Max (in): | 6.5 in |
Technical Specifications
| Rolling Element: | Ball Bearing | Housing Base: | Solid |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Misalignment Type: | Static Only | Housing Color: | Black |
| Outer Ring Land Profile: | Standard | Cage Material: | PPS - Polyphenylene Sulfide |
| Housing Type: | Pillow Block, Two Bolt | Seal Type: | Single Lip Contact Seal with Flinger |
| Housing Style: | Pillow Block | Ability to Relubricate: | Yes |
| Locking Collar Outside Diameter (in): | 3.38 in | Inner Race Heat Treat Method: | Zone-Hardened |
| Bearing Insert Material: | 52100 Bearing Steel | Cage Type: | Land Riding Retainer |
| Shaft Locking Type: | Concentric | End Cap Available: | No |
| Size Code: | 2-115 | Vibration Frequency Outer Ring Defect: | 0.0683 cps |
| Maximum Speed (RPM): | 3000 rpm | Bearing Type: | Standard Duty |
| Dynamic Load Rating (lb): | 7,889 lb | Bearing Insert Finish: | Black Oxide |
| Lubricant: | Lithium Complex NLGI 2 Grease | Inner Ring Outside Diameter (in): | 2.469 in |
| Vibration Frequency Fundamental Train: | 0.0068 cps | Fixed vs. Expansion: | Fixed |
| Housing Coating: | Powder Coated | Housing Material: | Cast Iron |
| Grease Fitting Thread Size: | 1/8 NPT | Vibration Frequency Roller Spin: | 0.0445 cps |
| Insert: | MH-31T | Max Operating Temperature (F): | 220 °F |
| Static Load Rating (lb): | 5,216 lb | Base Length (in): | 8.13 in |
| Misalignment Capability: | ±2.0° Misalignment - Static Only | Vibration Frequency Inner Ring Defect: | 0.0984 cps |
| Radial Clearance: | Standard |
General Specifications
| UPC: | 662461340615 | Weight: | 8.43 LB |
| Packaged Length: | 9.80 IN | Packaged Width: | 6.30 IN |
| Packaged Height: | 2.80 IN | HTC: | 8483.20.8040 |
| Country of Origin: | Mexico |

