What payment methods do you accept?

We accept T/T, LC, D/P, PayPal, Western Union, and small-amount payments.

Is this product suitable for indexing applications?

Yes, the CSK series one-way freewheels are specifically used for indexing, backstops, and overrunning clutches.

What is the material used for the bearing?

The bearing is made of Gcr15 material, ensuring durability and performance.

Csk25-2RS One Way Hold Back Freewheel Bearing Clutch

Name: Csk25-2RS One Way Hold Back Freewheel Bearing Clutch
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 753864005

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$2.50-4.00

1 Piece

Product profile

Customization

Available

Model

Csk25-2RS

Type

Sprag Type

Model NO.

CSK 25-2RS

Weight

0.175kg

Material

Gcr15

Seals Type

Sealed

OEM

Stock

Rich

Delivery

10-15days

Transport Package

Single Box or as Your Requirements

Specification

Trademark

SUMA or OEM

Origin

Changzhou, Jiangsu, China

HS Code

84826000

Production Capacity

10000PCS/Month

Key features

Sprag Type Design: Features sprag freewheels with bearing support and ball bearing properties for reliable performance.

High Torque Capacity: Nominal torques up to 325 Nm transmitted on inner or outer ring via press fit or keyway.

Grease-Filled for Normal Use: Supplied grease-filled specifically designed for normal operating conditions.

Versatile Applications: Ideal for backstops, overrunning clutches, and indexing freewheels in various machinery.

OEM and ODM Services: Accepts OEM orders with options for minor customization, full customization, and design-based solutions.

Rapid Delivery: Standard delivery time is 10-15 days for peak and off-peak seasons.

Rich Stock Availability: Maintains rich stock levels to ensure quick fulfillment of orders.

Multiple Seal Options: Available in sealed (2RS) and open configurations for different environmental needs.

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: ≤2.94h

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.