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- Shaft Seal
- 18 1/4 in Shaft Diameter
- 19 3/4 in Housing Bore Diameter
- 3/4 in Width
| Construction | Model 21 |
| Seal Application | General Purpose |
| Temperature Range [Min] | -40 °F |
| Cover/Compensation Ring/Plate Required | Yes |
| Temperature Range [Max] | 300 °F |
| Case Construction | Molded Rubber |
| Shaft Dia. | 18.25 in |
| Lip Style | Internal |
| Surface Speed [Max] | 1,000 ft/min |
| Misalignment Tolerance | 0.005 in @ 1000 ft/min, 0.010 in @ 500 ft/min |
| Pressure [Max] | N/A |
| Lip Material | Mill-Right® ES |
| Lip Type | Single Lip w/Finger Spring |
| Housing Bore Dia. | 19 3/4 in |
| Lip Base Material | Hydrogenated Nitrile |
| Inch/Metric | Inch |
| Spring Material | Stainless Steel |
| Seal Design | Split Seal |
| Misalignment & Runout (In. @ Feet Per Minute) | 0.005@1000, 0.010@500 |
| Weight | 1.939 LB |
| EAN or UPC | 717744116439 |
