Where are your products shipped from?

Our nearest ports are Shanghai and Ningbo, and we serve global markets including North America, Europe, and Australia.

What types of bearings are included in the K Series?

The K Series includes needle roller bearings with cages, single rows, radial load direction, and open style, available in various sizes from K5 to K30.

K Series Needle Roller Bearings 942/20

Name: K Series Needle Roller Bearings 942/20
Brand: Changzhou Suma Precision Machinery Co., Ltd.
SKU: 1973149745

Jiangsu, ChinaChangzhou Suma Precision Machinery Co., Ltd.

US$0.30-10.00

1 Piece

Product profile

Customization

Available

Cage

With Cage

Rows Number

Single

Load Direction

Radial Bearing

Style

Without Outer Ring, Without Inner Ring

Material

Bearing Steel

Type

Open

Product Name

K Series Needle Roller Bearing Cage

Bore Diameter

12mm

Weight

2.9g

Delivery Time

1 Day for Sample, 5-7 Days for Big Order

Port Name

Shanghai , Ningbo

OEM

Market

Global

Transport Package

Single Box

Specification

SGS

Trademark

SUMA or OEM

Origin

Changzhou

HS Code

84826000

Production Capacity

10000PCS/Month

Key features

OEM/ODM Customization: Supports full customization from designs or samples, including bore diameter and weight adjustments.

Wide Size Range: Available in shaft diameters from 5mm to 30mm with various boundary dimensions and weights.

High Load Capacity: Dynamic load ratings range from 2300N to 50000N, suitable for heavy radial bearing applications.

High Speed Performance: Limiting speeds up to 46500 rpm, ensuring efficient operation in high-speed machinery.

Premium Material: Manufactured from high-quality bearing steel for durability and resistance to wear.

Low MOQ: Minimum order quantity is just 1 piece, ideal for testing and small batch production.

Fast Delivery: Sample delivery in 1 day; bulk orders shipped within 5-7 days from Shanghai or Ningbo.

Strict Quality Control: 2 QA/QC inspectors perform random visual and function inspections on finished products.

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.

Product Q&A

Q:Can I customize the bearing specifications?

Yes, we offer OEM and ODM services. You can customize the bore diameter, weight, and other dimensions based on your designs or samples.

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece, allowing for flexible purchasing for samples or small batches.

Q:What are the delivery times for samples and bulk orders?

Samples can be delivered in 1 day. For large orders, the delivery time is typically 5-7 days.

Q:What payment methods do you accept?

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

Q:What is the warranty or quality guarantee?

We conduct random visual and function inspections on all finished products. Raw materials are fully traceable, and we have 2 dedicated QA/QC inspectors.