Product Description
CMT Clamping Nut M48 x 2mm with Bearing - Right-Hand by CMT is a precision replacement component engineered for securing collets in CNC routing and machining chuck systems. Designed with a right-hand (RH) thread pattern and a 60mm outer diameter, this clamping nut delivers the consistent, repeatable clamping force that CNC operators depend on for accurate, vibration-free cutting performance. Whether you are maintaining a high-cycle production setup or restoring a chuck assembly after heavy use, this bearing-equipped nut helps maintain the integrity of your toolholding system over time.
Key Features
- M48 x 2mm thread bore - matches the thread pitch of compatible chuck bodies precisely, ensuring a secure, play-free fit that supports consistent collet clamping force during operation.
- 60mm outer diameter - provides a stable, full-contact bearing surface across the chuck face, distributing clamping load evenly and reducing the risk of collet distortion or uneven grip.
- Integrated bearing design - allows the nut to rotate smoothly during tightening without transferring rotational stress to the collet, helping preserve collet geometry and extend toolholding life.
- Right-hand (RH) rotation - aligns with standard right-hand spindle configurations so installation is straightforward and self-tightening during forward spindle operation.
- Precision machined construction - delivers repeatable, accurate clamping torque application across collet changes, supporting dimensional consistency in high-precision CNC work.
Why This Product
- A worn or damaged clamping nut can compromise collet grip and introduce runout - replacing it with this correctly specified M48 x 2mm bearing nut restores the full clamping performance of a compatible chuck assembly.
- The built-in bearing reduces friction during torque application, meaning the collet receives the intended clamping load rather than losing force to thread friction - a key factor in tool retention accuracy.
- With a 60mm body diameter and precisely cut M48 x 2mm threads, this nut is built to exact dimensional tolerances, making it a reliable fit-for-purpose replacement rather than a generic substitute.
- Right-hand thread orientation ensures the nut remains securely engaged during standard forward-direction spindle rotation, reducing the risk of backing off under cutting loads.
Specifications
- Manufacturer Part Number: 992.283.11
- Brand: CMT Orange Tools
- Description: Clamping Nut M48x2mm with Bearing RH
- Diameter: 60mm
- Bore Diameter: M48x2mm
- Rotation: Right-Hand (RH)
- Class: RPRC
Frequently Asked Questions
What does the integrated bearing in this clamping nut do?
The bearing allows the nut body to rotate freely during tightening without transmitting rotational friction directly to the collet. This means the clamping torque you apply goes toward securing the collet rather than being absorbed by thread drag, resulting in more accurate and consistent clamping force.
What is the thread specification for this clamping nut?
This clamping nut features an M48 x 2mm thread bore, meaning it has a 48mm nominal thread diameter with a 2mm thread pitch. Always verify that your chuck body matches this specification before installation.
Is this clamping nut designed for right-hand or left-hand spindle rotation?
This nut is designed for right-hand (RH) rotation, which corresponds to standard forward-direction spindle operation on most CNC routers and machining centers. It is not intended for left-hand spindle configurations.
What is the outer diameter of this clamping nut?
The outer diameter of this clamping nut is 60mm. This measurement is important when confirming compatibility with your chuck body and when selecting an appropriate C-spanner for installation.
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