Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - MP-31T
Part #:705655
Catalog #:MP-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): | 2.88 in | Overall Length (in): | 9.5 in |
| Overall Width (in): | 2.88 in | Overall Height (in): | 5.09 in |
| Bolt Size (in): | 5/8 in | Bore Diameter (in): | 1.9375 in |
| Foot Height (in): | 0.88 in | Base to Center Height (in): | 2.5000 in |
| Length Through Bore (in): | 2.25 in | Bolt Spacing Max (in): | 7.56 in |
| Centerline to Outermost Bearing Face (in): | 1.38 in | Bolt Spacing Min (in): | 5.94 in |
Technical Specifications
| Housing Base: | Solid | Rolling Element: | Ball Bearing |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Outer Ring Land Profile: | Standard | Misalignment Type: | Static Only |
| Housing Color: | Black | Cage Material: | PPS - Polyphenylene Sulfide |
| Housing Type: | Pillow Block, Two Bolt | Seal Type: | Felt Labyrinth Seal |
| Housing Style: | Pillow Block | Inner Race Heat Treat Method: | Zone-Hardened |
| Locking Collar Outside Diameter (in): | 3.50 in | Ability to Relubricate: | Yes |
| Shaft Locking Type: | Concentric | Grease Fitting Thread Size: | 1/8 NPT |
| Bearing Insert Finish: | Black Oxide | Insert: | 3-115T |
| Lubricant: | Lithium Complex NLGI 2 Grease | Misalignment Capability: | ±2.0° Misalignment - Static Only |
| Dynamic Load Rating (lb): | 9,752 lb | Vibration Frequency Roller Spin: | 0.0437 cps |
| Vibration Frequency Fundamental Train: | 0.0068 cps | Vibration Frequency Inner Ring Defect: | 0.0987 cps |
| Size Code: | 2-23 | End Cap Available: | No |
| Housing Material: | Cast Iron | Housing Coating: | Powder Coated |
| Fixed vs. Expansion: | Fixed | Base Length (in): | 9.50 in |
| Radial Clearance: | Standard | Max Operating Temperature (F): | 220 °F |
| Bearing Type: | Medium Duty | Static Load Rating (lb): | 6,601 lb |
| Maximum Speed (RPM): | 4500 rpm | Inner Ring Outside Diameter (in): | 2.719 in |
| Cage Type: | Land Riding Retainer | Bearing Insert Material: | 52100 Bearing Steel |
| Vibration Frequency Outer Ring Defect: | 0.068 cps |
General Specifications
| UPC: | 662461031889 | Weight: | 12.39 LB |
| Packaged Length: | 5.69 IN | Packaged Width: | 9.68 IN |
| Packaged Height: | 3.19 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |

