Sealmaster Mounted Cast Iron Tapped Base Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - TB-21
Part #:700875
Catalog #:TB-21
KEY FEATURES
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Zone hardened inner ring with 120° spacing setscrew 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
| Thread Size: | 1/2-13 | Base Width (in): | 1.75 in |
| Overall Height (in): | 3.75 in | Overall Length (in): | 4.41 in |
| Overall Width (in): | 1.88 in | Bore Diameter (in): | 1.3125 in |
| Base to Center Height (in): | 1.875 in | Thread Depth (in): | 0.75 in |
| Length Through Bore (in): | 1.6875 in | Bolt Spacing (in): | 3.25 in |
| Centerline to Outermost Bearing Face (in): | 1.000 in |
Technical Specifications
| Rolling Element: | Ball Bearing | Housing Base: | Solid |
| Housing Construction: | One Piece | Bore Shape: | Straight |
| Misalignment Type: | Static Only | Outer Ring Land Profile: | Standard |
| Housing Color: | Black | Cage Material: | PPS - Polyphenylene Sulfide |
| Seal Type: | Felt Labyrinth Seal | Housing Type: | Pillow Block, Tapped Base |
| Housing Style: | Pillow Block | Ability to Relubricate: | Yes |
| Inner Race Heat Treat Method: | Zone-Hardened | Housing Material: | Cast Iron |
| Housing Coating: | Powder Coated | Bearing Insert Material: | 52100 Bearing Steel |
| Bearing Type: | Standard Duty | Insert: | 2-15 |
| Lubricant: | Lithium Complex NLGI 2 Grease | Radial Clearance: | Standard |
| Cage Type: | Land Riding Retainer | End Cap Available: | No |
| Base Length (in): | 4.25 in | Dynamic Load Rating (lb): | 5,782 lb |
| Misalignment Capability: | ±2.0° Misalignment - Static Only | Inner Ring Outside Diameter (in): | 1.859 in |
| Fixed vs. Expansion: | Fixed | Grease Fitting Thread Size: | 1/4-28 |
| Size Code: | 2-17 | Max Operating Temperature (F): | 220 °F |
| Bearing Insert Finish: | Black Oxide | Maximum Speed (RPM): | 4650 rpm |
| Static Load Rating (lb): | 3,493 lb | Shaft Locking Type: | Set Screw |
| Housing Width (in): | 1.88 in |
General Specifications
| UPC: | 662461007228 | Weight: | 4.30 LB |
| Packaged Length: | 5.00 IN | Packaged Width: | 2.00 IN |
| Packaged Height: | 5.00 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |

