Sealmaster Mounted Insert Only Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - Low Drag - ERX-8 LO
Part #:704957
Catalog #:ERX-8 LO
KEY FEATURES
- ER style cylindrical OD bearing with snap and with black oxided bearing rings
- Zone hardened inner ring with 120° spacing setscrew locking with diamond faceted setscrews
- Extra low drag seal cut down felt labyrinth seal and flinger
- Features a channeling grease that reduces drag while lubricating the bearing
- Nylon retainer to reduce overall drag
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Product Specifications
Dimensions
| Overall Width (in): | 1.22 in | Bore Size (in): | 0.5 in |
| Outer Race OD (mm): | 47 mm | Centerline to Front Face (in): | 0.813 in |
| Outer Race OD (in): | 1.8504 in | 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
| Seal Type: | Cut Down Felt Labyrinth | Bore Shape: | Straight |
| Insert Material: | 52100 Bearing Steel | Rolling Element: | Ball Bearing |
| Measure Units: | Inch | Housing Type: | Insert (ER Style) |
| Set Screw Thread: | 1/4-28 UNF | Misalignment: | None |
| Internal Clearance: | Standard | Expansion: | No |
| Bearing Insert Coating: | Black Oxide | End Cap: | No |
| Platform: | Gold Line Ball Bearing | Misalignment Type: | Static Only |
| Options: | Low Drag | Outer Ring Land Profile: | Tapered Lands |
| Cage Material: | PPS - Polyphenylene Sulfide | Precision Rating: | ABEC 1 |
| Outer Race Profile: | Cylindrical | Inner Race Profile: | Wide Inner Ring |
| Vibration Frequency Inner Ring Defect: | 0.0907 cps | Setscrew Torque (in-lbs): | 65-85 in/lbs |
| Vibration Frequency Fundamental Train: | 0.0066 cps | Series: | Unmounted Replacement Bearings |
| Ability to Relubricate: | Yes | Locking Type: | Set Screw |
| Inner Ring Fillet Radius (in): | 0.04 in | Lubrication Type: | Lithium NLGI 2 Low Torque Grease |
| Vibration Frequency Roller Spin: | 0.0381 cps | Size Code: | 2-012 |
| Maximum Operating Temperature (F): | 220 °F | Maximum Speed (rpm): | 5800 rpm |
| Inner Race Heat Treat Method: | Zone-Hardened | Duty/Status: | Standard |
| Vibration Frequency Outer Ring Defect: | 0.0593 cps | Cage Type: | Land Riding Retainer |
| Static Load Rating (lb): | 1,444 lb | Dynamic Load Rating (lb): | 2,611 lb |
General Specifications
| UPC: | 662461258590 | Weight: | 0.55 LB |
| Packaged Length: | 2.38 IN | Packaged Width: | 1.44 IN |
| Packaged Height: | 2.38 IN | HTC: | 8482.10.5048 |
| Country of Origin: | Mexico |

