Sealmaster Mounted Insert Only Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - ER-8C
Part #:703904
Catalog #:ER-8C
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): | 1.22 in | Bore Size (in): | 0.5 in |
| Outer Race OD (in): | 1.8504 in | Centerline to Front Face (in): | 0.813 in |
| Outer Race OD (mm): | 47 mm | Inner Ring OD (in): | 1.188 in |
| Outer Race Width (in): | 0.625 in | Length Through Bore (in): | 1.219 in |
| Outer Race Width (mm): | 15.9 mm |
Technical Specifications
| Set Screw Thread: | 1/4-28 UNF | Bore Shape: | Straight |
| Rolling Element: | Ball Bearing | Housing Type: | Insert (ER Style) |
| Seal Type: | Single Lip Contact Seal | Insert Material: | 52100 Bearing Steel |
| Measure Units: | Inch | Expansion: | No |
| Misalignment: | None | Internal Clearance: | Standard |
| Outer Ring Land Profile: | Tapered Lands | End Cap: | No |
| Platform: | Gold Line Ball Bearing | Misalignment Type: | Static Only |
| Bearing Insert Coating: | Black Oxide | Cage Material: | PPS - Polyphenylene Sulfide |
| Precision Rating: | ABEC 1 | Inner Race Profile: | Wide Inner Ring |
| Outer Race Profile: | Cylindrical | Setscrew Torque (in-lbs): | 65-85 in/lbs |
| Maximum Speed (rpm): | 6450 rpm | Vibration Frequency Roller Spin: | 0.0381 cps |
| Locking Type: | Set Screw | Size Code: | 2-012 |
| Inner Race Heat Treat Method: | Zone-Hardened | Vibration Frequency Fundamental Train: | 0.0066 cps |
| Duty/Status: | Standard | Ability to Relubricate: | Yes |
| Maximum Operating Temperature (F): | 220 °F | Vibration Frequency Outer Ring Defect: | 0.0593 cps |
| Series: | Unmounted Replacement Bearings | Vibration Frequency Inner Ring Defect: | 0.0907 cps |
| Inner Ring Fillet Radius (in): | 0.04 in | Lubrication Type: | Lithium Complex NLGI 2 Grease |
| Cage Type: | Land Riding Retainer | Dynamic Load Rating (lb): | 2,611 lb |
| Static Load Rating (lb): | 1,444 lb |
General Specifications
| UPC: | 662461024683 | Weight: | 0.54 LB |
| Packaged Length: | 2.38 IN | Packaged Width: | 1.44 IN |
| Packaged Height: | 2.38 IN | HTC: | 8482.10.5048 |
| Country of Origin: | Mexico |

