ER Round Lock Nuts for ER Collet Chucks
Replacement round-style lock nuts for compatible ER collet chuck systems. Select the correct ER size and nut style for your chuck.
Features
- HIGH QUALITY STEEL: Made of High Quality Chromium STEEL..
- SECURE COLLET CLAMPING: Designed to provide consistent clamping force for securely seating and tightening ER collets in compatible ER collet chucks.
- PRECISION MACHINED: Precision machined threads and contact surfaces provide smooth engagement and reliable tightening during repeated tool changes.
- DURABLE CONSTRUCTION: Hardened, wear-resistant construction stands up to repeated tightening and loosening in demanding machining environments.
- STANDARD ER COMPATIBILITY: Designed for use with standard ER collet chuck systems and the corresponding ER-size spring collets.
- Veteran Owned Business
Specifications by Size
| RMT SKU | ER Size | Style | Material | Torque (ft-lb) | Thread Fit | A | B | C | D |
|---|---|---|---|---|---|---|---|---|---|
| RT1400 | ER16 | Round | 42CrMo | 30-35 | 6H | 1.25" | 0.77" | M22X1.5 | 0.684 |
| RT1401 | ER20 | Round | 42CrMo | 40-45 | 6H | 1.37" | 0.83" | M25X1.5 | 0.888 |
| RT1179 | ER25 | Round | 42CrMo | 60-70 | 6H | 1.65" | 0.87" | M32X1.5 | 1.417 |
| RT1180 | ER32 | Round | 42CrMo | 90-110 | 6H | 1.97" | 0.98" | M40X1.5 | 1.73 |
| RT1181 | ER40 | Round | 42CrMo | 130-150 | 6H | 2.48" | 1.08" | M50X1.5 | 2.24 |
Compatibility: Verify nut type, thread and ER series before ordering.
