What are the available inner race sizes?

Inner race sizes range from 60mm to 240mm.

Can this clutch be used as an overrunning clutch?

Yes, it can be used as an overrunning clutch in crawl drives where the overrunning speed is high.

What are the available shipping terms?

We offer FOB, CIF, CFR, and EXW terms.

Overrunning Clutch, Backstop Clutch, Cam Clutch, Indexing Clutch, Rsci Rsbi Series

Name: Overrunning Clutch, Backstop Clutch, Cam Clutch, Indexing Clutch, Rsci Rsbi Series
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 1978178635

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$180.00-1,000.00

1 Piece

Product profile

Customization

Available

Type

Sprag

Material

Bearing Steel

Inner Race Size (mm)

60-240

Outer Race Size (mm)

175-490

Weight (Kg)

6.5-96

Application

Industrial Machine

Package

Industrial Package

Market

Global

Transport Package

Single Box

Specification

RSBI

Trademark

SUMA or OEM

Origin

Changzhou

HS Code

84836000

Production Capacity

1000PCS/Month

Key features

Sprag Type Design: Centrifugal lift off sprag type freewheel with inner race rotating.

Wide Size Range: Inner race sizes from 60mm to 240mm and outer race sizes from 175mm to 490mm.

Dual Application Mode: Functions as backstop or overrunning clutch in crawl drives with high overrunning speed.

Bearing Steel Material: Constructed from high-quality bearing steel for durability and performance.

OEM and ODM Services: Offers minor, full, design-based, and sample-based customization options.

Fast Lead Time: Peak and off-season lead times are within 15 workdays.

Low MOQ: Minimum Order Quantity is just 1 piece.

Global Market Supply: Serves North America, South America, Europe, and Australia markets.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExhibition ExperienceQuality Assurance

Changzhou Suma Precision Machinery Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.96h

AI-Powered supplier vetting

SummaryChangzhou Suma Precision Machinery Co., Ltd. is a China-based limited company established in 2012, with 23 employees and operations in manufacturing-related machinery. It supplies bearings, clutches, backstop clutches, and washers, and reports machining, CNC grinding, and CNC turning equipment. The supplier demonstrates broad customization, recent new-product activity, ODM capability, and OEM service for recognized brands. Quality controls include product inspection instructions, raw-material traceability, and maintained procedures. Export experience is substantial, with 90% of sales reported as exports and 11 years of exporting, but no overseas warehouses, showrooms, agents, or branches. Service governance is weakly documented: no written procedures or records were reported for supplier assessment, corrective actions, or complaint handling. The provided slices do not establish certifications, detailed financial strength, or named customer cases. An audit by CTI is recorded, but the evaluation result is...

After-Sales capabilityThe supplier accepts multiple quotation and payment terms and reports average peak- and off-season lead times within 15 working days. However, it has no written procedures or records for complaint handling or corrective and preventive actions, and it has no overseas warehouse, showroom, agent, or branch; these facts indicate limited documented after-sales infrastructure.

R&D capabilityThe supplier reports that it had new products during the past year and provides ODM services, supporting active product-development capability. It also offers customization from designs and samples, but has no available SDK, so the innovation evidence is positive but not comprehensive.

Production capacityReported production resources include a machining center, CNC grinding machine, and CNC lathe. Finished products are inspected using instructions that are uniformly followed, with quality assurance, raw-material traceability, and maintained quality-control records; however, the slices do not quantify capacity or output.

Customization capabilityThe supplier explicitly provides minor customization, full customization, customization from customer designs, and customization from samples. The same capabilities are reported in both the R&D and design-service information, providing direct evidence of broad customization coverage.