Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - NP-20RC
Part #:703251
Catalog #:NP-20RC
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
- Single lip contact seal
- 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
| Overall Height (in): | 3.38 in | Overall Width (in): | 1.88 in |
| Overall Length (in): | 6.5 in | Base Width (in): | 1.88 in |
| Bolt Size (in): | 1/2 in | Bore Diameter (in): | 1.25 in |
| Foot Height (in): | 0.56 in | Base to Center Height (in): | 1.6875 in |
| Length Through Bore (in): | 1.497 in | Bolt Spacing (in): | 4.75 in |
| Centerline to Outermost Bearing Face (in): | 0.875 in | Bolt Spacing Min (in): | 4.44 in |
| Bolt Spacing Max (in): | 5.06 in |
Technical Specifications
| Rolling Element: | Ball Bearing | Housing Base: | Solid |
| 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: | Single Lip Contact Seal |
| Housing Style: | Pillow Block | Ability to Relubricate: | Yes |
| Inner Race Heat Treat Method: | Zone-Hardened | Housing Coating: | Powder Coated |
| Bearing Insert Material: | 52100 Bearing Steel | Inner Ring Outside Diameter (in): | 1.594 in |
| Bearing Type: | Standard Duty | Dynamic Load Rating (lb): | 4,381 lb |
| Max Operating Temperature (F): | 220 °F | Maximum Speed (RPM): | 5450 rpm |
| Base Length (in): | 6.5 in | Housing Material: | Cast Iron |
| Vibration Frequency Outer Ring Defect: | 0.0595 cps | Vibration Frequency Fundamental Train: | 0.0066 cps |
| Cage Type: | Land Riding Retainer | Size Code: | 2-13 |
| Bearing Insert Finish: | Black Oxide | Insert: | 1-14C |
| Static Load Rating (lb): | 2,567 lb | Fixed vs. Expansion: | Fixed |
| Shaft Locking Type: | Set Screw | End Cap Available: | No |
| Lubricant: | Lithium Complex NLGI 2 Grease | Radial Clearance: | Standard |
| Vibration Frequency Roller Spin: | 0.0385 cps | Vibration Frequency Inner Ring Defect: | 0.0905 cps |
| Grease Fitting Thread Size: | 1/4-28 | Misalignment Capability: | ±2.0° Misalignment - Static Only |
General Specifications
| UPC: | 662461020708 | Weight: | 3.60 LB |
| Packaged Length: | 4.38 IN | Packaged Width: | 2.06 IN |
| Packaged Height: | 6.81 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |

