Sealmaster Mounted Insert Only Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - ER-55C
Part #:703951
Catalog #:ER-55C
KEY FEATURES
- ER style cylindrical OD bearing with snap and with black oxided bearing rings
- Zone hardened inner ring with 120° spacing setscrew lock with diamond faceted setscrews
- Felt labyrinth seal and flinger for dry and dusty environment
- 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.
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Product Specifications
Dimensions
| Overall Width (in): | 3.38 in | Bore Size (in): | 3.4375 in |
| Outer Race OD (in): | 5.9055 in | Inner Ring OD (in): | 4.156 in |
| Outer Race OD (mm): | 150 mm | Centerline to Front Face (in): | 2.031 in |
| Outer Race Width (in): | 1.938 in | Length Through Bore (in): | 3.375 in |
| Outer Race Width (mm): | 49.2 mm |
Technical Specifications
| Rolling Element: | Ball Bearing | Insert Material: | 52100 Bearing Steel |
| Bore Shape: | Straight | Seal Type: | Single Lip Contact Seal |
| Measure Units: | Inch | Set Screw Thread: | 7/16-20 UNF |
| Housing Type: | Insert (ER Style) | Misalignment: | None |
| Expansion: | No | Internal Clearance: | Standard |
| End Cap: | No | Outer Ring Land Profile: | Standard |
| Platform: | Gold Line Ball Bearing | Misalignment Type: | Static Only |
| Bearing Insert Coating: | Black Oxide | Cage Material: | Brass |
| Precision Rating: | ABEC 1 | Outer Race Profile: | Cylindrical |
| Inner Race Profile: | Wide Inner Ring | Lubrication Type: | Lithium Complex NLGI 2 Grease |
| Maximum Speed (rpm): | 1850 rpm | Maximum Operating Temperature (F): | 220 °F |
| Inner Race Heat Treat Method: | Zone-Hardened | Vibration Frequency Outer Ring Defect: | 0.0762 cps |
| Vibration Frequency Inner Ring Defect: | 0.1071 cps | Size Code: | 2-37 |
| Inner Ring Fillet Radius (in): | 0.12 in | Vibration Frequency Roller Spin: | 0.0479 cps |
| Vibration Frequency Fundamental Train: | 0.0069 cps | Series: | Unmounted Replacement Bearings |
| Duty/Status: | Standard | Ability to Relubricate: | Yes |
| Locking Type: | Set Screw | Setscrew Torque (in-lbs): | 350-450 in/lbs |
| Dynamic Load Rating (lb): | 18,681 lb | Static Load Rating (lb): | 14,496 lb |
| Cage Type: | Land Riding Retainer |
General Specifications
| UPC: | 662461025116 | Weight: | 9.50 LB |
| Packaged Length: | 6.00 IN | Packaged Width: | 6.00 IN |
| Packaged Height: | 4.00 IN | HTC: | 8482.10.5056 |
| Country of Origin: | United States of America |

