Stepper Motor Shaft Sleeve 8mm to 11mm CNCTOPBAOS Gear Reducer Adapter

Description

Product Overview

The CNCTOPBAOS 8mm to 11mm stepper motor shaft sleeve is engineered to bridge the dimensional gap between standard stepper motor shafts and larger worm gear reducer inputs. Crafted from hardened steel, this sleeve offers exceptional strength, resistance to wear, and dimensional stability under high torque conditions. Its precise 8mm inner diameter (0.31 in) and 11mm outer diameter (0.43 in) dimensions, combined with a 20 mm (0.78 in) length, provide a snug, secure fit that eliminates wobble and vibration during operation. The solid steel construction not only extends service life but also maintains consistent performance across a wide temperature range, making it suitable for demanding industrial environments.

Usage

This shaft sleeve is specifically designed for use with the NMRV030 and NMRV30 worm gear reducers, as well as the RV030 model series. It excels in applications where precise speed reduction and torque multiplication are required, such as CNC machines, robotic arms, automated assembly lines, and material handling equipment. The adapter’s compact profile allows it to be installed in tight spaces without compromising clearance, and its steel composition ensures reliable operation even under continuous load. Whether you are retrofitting an existing system or building a new machine, the sleeve provides a straightforward solution to match stepper motor outputs with larger gear inputs, reducing the need for custom machining or costly redesigns.

Why Choose Us

Choosing the CNCTOPBAOS shaft sleeve means selecting a component that combines precision engineering with robust material quality. Our manufacturing process includes rigorous heat‑treatment and machining tolerances that guarantee a perfect fit for both the motor shaft and the reducer bore. Each unit undergoes thorough inspection to meet ISO‑9001 standards, ensuring that you receive a product free from defects and ready for immediate installation. In addition, our dedicated technical support team is available to assist with fitment questions, installation guidance, and after‑sales service, providing you with confidence throughout the product lifecycle.

Key Features

• Precision‑machined steel sleeve delivers a secure 8mm to 11mm bore conversion for reliable torque transfer.
• Durable hardened steel resists wear and maintains dimensional stability under high‑load conditions.
• Compact 20 mm length fits into tight mechanical assemblies without sacrificing performance.
• Easy installation with no additional tools required, reducing downtime during equipment upgrades.
• Comprehensive technical support and warranty coverage for peace of mind.

FAQ

What stepper motor sizes are compatible with this sleeve?

The sleeve is designed for stepper motors with an 8 mm (0.31 in) shaft diameter. It converts the shaft to an 11 mm (0.43 in) bore, making it compatible with a wide range of standard stepper motors used in industrial automation.

Can this sleeve be used with gear reducers other than RV030?

Yes, the sleeve works with any worm gear reducer that requires an 11 mm bore, provided the reducer’s mounting dimensions align with the sleeve’s outer diameter and length. Always verify the reducer’s specifications before installation.

Is the steel material suitable for high‑temperature environments?

The hardened steel used in this sleeve is rated for continuous operation up to 150 °C (302 °F), making it appropriate for most industrial applications where elevated temperatures may be encountered.

How do I install the sleeve correctly?

First, ensure the motor shaft is clean and free of debris. Slide the sleeve onto the shaft, aligning the inner 8 mm bore with the motor. Then, insert the sleeve’s outer 11 mm end into the reducer’s bore, applying a light torque as specified in the reducer’s installation guide. No additional fasteners are required.

What warranty does CNCTOPBAOS provide for this product?

CNCTOPBAOS offers a one‑year limited warranty covering material defects and workmanship. Should any issues arise within the warranty period, contact our support team for a replacement or repair solution.