Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Double Setscrew Lock - MPD-47
Part #:702313
Catalog #:MPD-47
KEY FEATURES
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Zone hardened inner ring with 120° spacing setscrew locking on both sides of ball path with diamond faceted setscrews
- 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): | 3.50 in | Overall Width (in): | 3.88 in |
| Overall Length (in): | 13 in | Overall Height (in): | 7.25 in |
| Bolt Size (in): | 7/8 in | Bore Diameter (in): | 2.9375 in |
| Foot Height (in): | 1.25 in | Base to Center Height (in): | 3.5000 in |
| Length Through Bore (in): | 3.875 in | Bolt Spacing Min (in): | 7.88 in |
| Centerline to Outermost Bearing Face (in): | 1.938 in | Bolt Spacing Max (in): | 10.13 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: | Brass |
| Housing Type: | Pillow Block, Two Bolt | Seal Type: | Felt Labyrinth Seal |
| Housing Style: | Pillow Block | Inner Race Heat Treat Method: | Zone-Hardened |
| Ability to Relubricate: | Yes | Setscrew Torque (in-lbs): | 500-650 in/lbs |
| Insert: | 3-215D | Base Length (in): | 13.00 in |
| Misalignment Capability: | ±2.0° Misalignment - Static Only | Fixed vs. Expansion: | Fixed |
| Dynamic Load Rating (lb): | 17,412 lb | Shaft Locking Type: | Double Set Screw |
| Bearing Insert Material: | 52100 Bearing Steel | Static Load Rating (lb): | 13,174 lb |
| Bearing Type: | Medium Duty | Radial Clearance: | Standard |
| Housing Coating: | Powder Coated | Grease Fitting Thread Size: | 1/4 NPT |
| Lubricant: | Lithium Complex NLGI 2 Grease | Max Operating Temperature (F): | 220 °F |
| Bearing Insert Finish: | Black Oxide | Inner Ring Outside Diameter (in): | 3.922 in |
| Cage Type: | Land Riding Retainer | Size Code: | 2-33 |
| Vibration Frequency Roller Spin: | 0.0470 cps | End Cap Available: | No |
| Maximum Speed (RPM): | 3150 rpm | Vibration Frequency Inner Ring Defect: | 0.1074 cps |
| Vibration Frequency Outer Ring Defect: | 0.0759 cps | Vibration Frequency Fundamental Train: | 0.0069 cps |
| Housing Material: | Cast Iron |
General Specifications
| UPC: | 662461016824 | Weight: | 31.87 LB |
| Packaged Length: | 14.25 IN | Packaged Width: | 8.06 IN |
| Packaged Height: | 4.00 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |

