What payment methods do you accept?

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

What is the maximum torque capacity?

The nominal torque can reach up to 2,400 Nm depending on the specific model.

Where is the manufacturer located?

We are located in Liudao Industrial Park, Wujin District, Changzhou, Jiangsu, China.

Internal Freewheels Fdfd20 Backstop with Sprags

Name: Internal Freewheels Fdfd20 Backstop with Sprags
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 757457905

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$5.00

1 Piece

Product profile

Customization

Available

Model

Fd20

Type

Cfh

Model NO.

FD20

Outer Diameter

34mm

Inner Diameter

12mm

Weight

0.1kg

Width

16mm

Material

Gcr15

OEM

Delivery

10-15days

Transport Package

Single Box or as Your Requirements

Specification

Trademark

SUMA or OEM

Origin

Changzhou, Jiangsu, China

HS Code

84836000

Production Capacity

10000PCS/Month

Key features

OEM/ODM Customization: Full customization and OEM/ODM services available from designs or samples.

High Torque Capacity: Nominal torques up to 2,400 Nm for robust industrial applications.

Wide Size Range: Outer diameter 34-130mm and bore size 12-105mm to fit various shafts.

Versatile Applications: Ideal for backstops, overrunning clutches, and indexing in gearboxes.

Durable Material: Constructed from GCr15 steel for high strength and wear resistance.

Fast Delivery: Standard delivery time within 7-10 days for efficient project timelines.

Low MOQ: Minimum order quantity is just 1 piece, suitable for small batches.

Precision Grade P0: High precision manufacturing ensures accurate performance and longevity.

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: ≤2.17h

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.