How are the units lubricated?

Units must be oil lubricated before use if delivered disassembled, and covers have ports for oil filling and draining.

What payment methods do you accept?

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

What is the material used for these bearings?

The bearings are made of high-quality bearing steel.

Freewheel Backstop Clutch One Way Roller Bearings (GFR...F2F3/F3F4)

Name: Freewheel Backstop Clutch One Way Roller Bearings (GFR...F2F3/F3F4)
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 685749932

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$100.00

1 Piece

Product profile

Customization

Available

Rolling Body

Roller Bearings

The Number of Rows

Single

Model NO.

GFR...F2F3/F3F4

Outer Dimension

62-400mm

Material

Bearing Steel

Load Direction

Radial Bearing

Separated

Product Name

One Way Roller Bearings

Torque Capacity

55-70000nm

Bore Diameter

12-150mm

Thickness

42-246mm

Weight

1.4-214kg

Delivery Time

5-7 Days

OEM

Available

Port

Shanghai, Ningbo

Application

Backstop Clutch

Transport Package

Industry Packing

Specification

GFR

Trademark

Origin

Changzhou

HS Code

84836000

Production Capacity

10000PCS/Year

Key features

Wide Torque Capacity: Range from 55 Nm to 70,000 Nm to suit various industrial applications.

Customizable Dimensions: Bore diameter from 12mm to 150mm and outer dimension from 62mm to 400mm.

OEM and ODM Services: Full customization, design-based, and sample-based customization available.

Rapid Delivery: Standard delivery time is 5-7 days for assembled units.

Versatile Application: Designed primarily as backstops with integrated torque arms and stop bolts.

Flexible Installation: Covers allow on-site selection of rotation direction and easy fitting.

High Load Bearing: Radial bearing design with single row roller bearings for stability.

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

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: ≤2.55h

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.