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- Shaft-to-Shaft Coupling Type
- 1.375 in Bore Diameter
- 2.54 in Outside Diameter
- U137R Coupling Size
| Coupling Size | U137R |
| Temperature Range [Max] | 250 °F |
| Wind-Up Angle @ Nominal Torque | 1.85 ° |
| Length Through Bore | 1.58 in |
| Keyway Size | 5/16 x 5/32 |
| Bolt Size | 1 |
| Spider Inside Diameter | 0.375 in |
| Axial Misalignment | 0.04 in |
| Bore Dia. [Min] | 5/8 in |
| Bore Range [Min] | 0.625 in |
| Torque | 1260 in lb |
| Spider Outside Diameter | 0.69 in |
| Hub Type | Regular |
| Set Screw Size | 3/8-16 |
| RPM [Max] | 6000 rpm |
| Color | Gray/Metallic |
| Outside Dia. | 2.54 in |
| Bore Range [Max] | 1.375 in |
| Temperature Range [Min] | -40 °F |
| Parallel Misalignment [Max] | 0.035 in |
| Set Screw | 3/8-16 |
| Material | Steel |
| Bore Dia. [Max] | 1 3/8 in |
| Bore Type | Finished Bore |
| Wind-Up Angle @ Maximum Torque | 3 ° |
| Coupling Type | Shaft-to-Shaft |
| Overall Length | 5.25 in |
| Nominal Size | 1 3/8 in |
| RPM | 6000 rpm |
| Rated Power @ 100 rpm | 2 1/50 hp |
| Weight | 6.0 LB |
| EAN or UPC | 685144136039 |
