Are these freewheels lubricated?

Yes, they require oil lubrication and are designed to work with covers that provide oil lubrication and sealing.

Can I customize the size of the freewheel?

Yes, we offer full customization. Inside diameters range from 12-150mm and outside diameters from 62-400mm.

Overrunning Clutch Backstop Gfr Gfrn Series Roller Type Freewheel

Name: Overrunning Clutch Backstop Gfr Gfrn Series Roller Type Freewheel
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 759219085

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$20.00-4,260.00

1 Piece

Product profile

Customization

Available

Model

Gfr Gfrn

Inside Diameter

12-150mm

Model NO.

GFR GFRN

Outside Diameter

62-400mm

Torque

55-70000nm

Weight

0.5-138kg

Precision

OEM

Pakage

Single Box or as Your Requirements

Delivery

10-15days

Transport Package

Industry Packing

Specification

GFR

Trademark

SUMA or OEM

Origin

Changzhou, Jiangsu, China

HS Code

84836000

Production Capacity

10000PCS/Year

Key features

Wide Torque Range: Supports torque from 55Nm to 70,000Nm for diverse industrial applications.

OEM & ODM Service: Accepts OEM orders and offers full customization from designs or samples.

Low MOQ: Minimum order quantity is just 1 piece, ideal for prototyping and small batches.

Fast Delivery: Standard delivery within 10-15 days, with peak and off-season lead times within 15 workdays.

High Precision: Manufactured with P6 precision grade for reliable performance and durability.

Flexible Payment: Supports T/T, LC, D/P, PayPal, Western Union, and small-amount payments.

Customizable Dimensions: Available in various sizes with inside diameters from 12-150mm and outside diameters from 62-400mm.

Oil Lubrication Design: Bearing-supported design requiring oil lubrication for optimal operation and sealing.

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: ≤2.47h

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.