What materials are used for the locking device?

The device is made from bearing steel.

What are the shipping terms?

We support FOB, CIF, CFR, and EXW international commercial terms.

Shaft-Hub-Connections Z7b-20X50 Locking Device

Name: Shaft-Hub-Connections Z7b-20X50 Locking Device
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 1973845125

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$5.00-35.00

1 Piece

Product profile

Customization

Available

Standard or Nonstandard

Standard

Application

Textile Machinery, Garment Machinery, Packaging Machinery, Motorcycle, Food Machinery, Mining Equipment, Agricultural Machinery

Model NO.

Z7B-20X50

Material

Bearing Steel

Product Name

Z7b-20X50 Locking Assembly

Type

Z7b-20X50

Inner Size(mm)

Outer Size(mm)

Thickness (mm)

Torque (Knm)

OEM

Market

Global

Transport Package

Carton Box or Wooden Box

Trademark

SUMA or OEM

Origin

Changzhou, Jiangsu, China

HS Code

8483600090

Production Capacity

10000PCS/Month

Key features

Versatile Application: Suitable for textile, garment, packaging, motorcycle, food, mining, and agricultural machinery.

High Torque Capacity: Capable of transmitting up to 5 Knm torque with combined pressure and friction.

Durable Material: Constructed from high-quality bearing steel for long-lasting performance.

OEM and ODM Services: Accepts OEM orders and offers ODM services including full and minor customization.

Global Market Reach: Exports to North America, South America, Europe, and Australia with 11 years of experience.

Flexible MOQ: Minimum Order Quantity is just 1 piece, suitable for small batches.

Fast Lead Time: Average lead time is within 15 workdays for both peak and off-peak seasons.

Strict Quality Control: Features random visual and function inspections with traceable raw materials.

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.