SUMA specializes in manufacturing high-performance one way bearings, sprag clutches, roller clutches, and backstop bearings for industrial automation, conveyor systems, packaging machinery, printing machines, and power transmission equipment.

With precision engineering, stable torque transmission, and long service life, SUMA One Way Bearings deliver reliable unidirectional rotation and excellent anti-backdrive performance.

• Backstop protection
• Indexing operations
• Overrunning protection
• Anti-reverse applications
• Controlled power transmission

 High Torque Transmission

Designed for continuous heavy-duty loads with stable torque output.

 Precision Grinding & Heat-Treated Components

SUMA uses premium bearing steel and advanced heat treatment for maximum durability.

 Unidirectional Rotation & Anti-Backdrive

Ensures controlled motion and prevents backward rotation in critical systems.

 High Speed and Low Noise

Optimized for automation lines, printing, labeling, and packaging machinery.

SUMA One Way Bearings can replace:

• INA one way bearing equivalents
• NTN sprag clutch replacements
• Torrington roller clutch replacements
• HF / HFL / RC / DC / CSK / BB compatible series

SUMA supports:

• Custom torque requirements
• Custom size & structure
• Special materials (high-temp, corrosion-resistant)
• Private label branding
• Custom packaging

Ideal for distributors, machinery manufacturers, and system integrators.

Every batch of SUMA one way bearings undergoes:

• 100% torque inspection
• Hardness testing
• Life-cycle durability test
• Material composition analysis
• Dimensional precision checks
• Noise & vibration testing

Strict QC ensures stable and reliable performance in all applications.

SUMA provides export-grade packaging:

• Anti-rust wrapping
• Individual boxes or bulk pack
• Custom brand packaging available
• Palletized shipping for large orders

Markets covered: Europe, North America, Southeast Asia, Middle East, South America.

SUMA was a professional and non-stop manufacturer for mechanical parts. Changzhou Suma Precision Machinery Co., ltd integrates into R&D, Design, Manufacturing and Sales, the main products are one way clutch bearing, backstop clutch, overrunning clutch, needle roller bearings and spherical plain bearings.

It has 6 major categories, over 100 different patterns and more than thousands sizes available.

What our clients say

"From planning to delivery, it has been a smooth and gratifying transaction. The SUMA team is quickly responsive, and their one way bearing are top-grade! In the end, they deliver as promised, and more. We look forward to a long-term partnership with them."

Anurag Tyagi