Sealmaster Mounted Cast Iron Wide Slot Take Up Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - ST-20TC
Part #:705910
Catalog #:ST-20TC
KEY FEATURES
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Skwezloc® concentric locking for near perfect concentricity
- 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): | 4.00 in | Overall Length (in): | 5.06 in |
| Overall Width (in): | 1.81 in | Bore Diameter (in): | 1.25 in |
| Base to Center Height (in): | 3.06 in | Length Through Bore (in): | 1.81 in |
| Slot Width (in): | 0.531 in | Slot Spacing (in): | 3.500 in |
| Centerline to Outermost Bearing Face (in): | 1.063 in |
Technical Specifications
| Rolling Element: | Ball Bearing | Housing Construction: | One Piece |
| Bore Shape: | Straight | Misalignment Type: | Static Only |
| Housing Color: | Black | Outer Ring Land Profile: | Standard |
| Cage Material: | PPS - Polyphenylene Sulfide | Series: | ST |
| Seal Type: | Single Lip Contact Seal | Housing Type: | Take-Up Block, Wide Slot |
| Slot Length (in): | 2.50 in | Housing Style: | Take-Up Block |
| Carriage Bolt Size (in): | 5/8 in | Inner Race Heat Treat Method: | Zone-Hardened |
| Locking Collar Outside Diameter (in): | 2.50 in | Adjusting Screw Square Nut Seat Height (in): | 1.44 in |
| Ability to Relubricate: | Yes | Adjusting Screw Clearance Hole Diameter (in): | 0.88 in |
| Inner Ring Outside Diameter (in): | 1.859 in | Bearing Type: | Standard Duty |
| End Cap Available: | No | Vibration Frequency Outer Ring Defect: | 0.0595 cps |
| Vibration Frequency Roller Spin: | 0.0386 cps | Static Load Rating (lb): | 3,493 lb |
| Shaft Locking Type: | Concentric | Fixed vs. Expansion: | Fixed |
| Radial Clearance: | Standard | Insert: | 2-14TC |
| Vibration Frequency Inner Ring Defect: | 0.0905 cps | Lubricant: | Lithium Complex NLGI 2 Grease |
| Vibration Frequency Fundamental Train: | 0.0066 cps | Grease Fitting Thread Size: | 1/4-28 |
| Dynamic Load Rating (lb): | 5,782 lb | Max Operating Temperature (F): | 220 °F |
| Bearing Insert Material: | 52100 Bearing Steel | Housing Coating: | Powder Coated |
| Housing Material: | Cast Iron | Maximum Speed (RPM): | 4650 rpm |
| Size Code: | 2-17 | Bearing Insert Finish: | Black Oxide |
| Cage Type: | Land Riding Retainer | Misalignment Capability: | ±2.0° Misalignment - Static Only |
General Specifications
| UPC: | 662461033890 | Weight: | 4.30 LB |
| Packaged Length: | 4.38 IN | Packaged Width: | 2.06 IN |
| Packaged Height: | 6.81 IN | HTC: | 8483.20.4040 |
| Country of Origin: | United States of America |

