Sealmaster Mounted Cast Iron Tapped Base Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - TB-28C
Part #:703773
Catalog #:TB-28C
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
- 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
| Thread Size: | 1/2-13 | Overall Length (in): | 5 in |
| Base Width (in): | 2 in | Overall Height (in): | 4.25 in |
| Overall Width (in): | 2 in | Bore Diameter (in): | 1.75 in |
| Thread Depth (in): | 0.75 in | Base to Center Height (in): | 2.125 in |
| Length Through Bore (in): | 2.000 in | Centerline to Outermost Bearing Face (in): | 1.188 in |
| Bolt Spacing (in): | 3.750 in |
Technical Specifications
| Housing Base: | Solid | Rolling Element: | Ball Bearing |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Misalignment Type: | Static Only | Housing Color: | Black |
| Outer Ring Land Profile: | Standard | Cage Material: | PPS - Polyphenylene Sulfide |
| Seal Type: | Single Lip Contact Seal | Housing Type: | Pillow Block, Tapped Base |
| Housing Style: | Pillow Block | Inner Race Heat Treat Method: | Zone-Hardened |
| Ability to Relubricate: | Yes | Housing Coating: | Powder Coated |
| Bearing Type: | Standard Duty | Inner Ring Outside Diameter (in): | 2.297 in |
| Misalignment Capability: | ±2.0° Misalignment - Static Only | Radial Clearance: | Standard |
| Maximum Speed (RPM): | 3800 rpm | Housing Material: | Cast Iron |
| Insert: | 2-112C | Shaft Locking Type: | Set Screw |
| Fixed vs. Expansion: | Fixed | Lubricant: | Lithium Complex NLGI 2 Grease |
| Size Code: | 2-111 | Max Operating Temperature (F): | 220 °F |
| Static Load Rating (lb): | 5,139 lb | End Cap Available: | No |
| Base Length (in): | 5.000 in | Bearing Insert Finish: | Black Oxide |
| Bearing Insert Material: | 52100 Bearing Steel | Cage Type: | Land Riding Retainer |
| Dynamic Load Rating (lb): | 7,901 lb | Grease Fitting Thread Size: | 1/4-28 |
| Housing Width (in): | 2 in |
General Specifications
| UPC: | 662461024522 | Weight: | 6.09 LB |
| Packaged Length: | 5.94 IN | Packaged Width: | 6.06 IN |
| Packaged Height: | 2.19 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |

