What are common issues with sprockets?

Common problems include: Worn or broken teeth due to misalignment or overload; Chain skipping or slipping; Rust or corrosion in harsh environments; Excessive noise or vibration from poor alignment.

Are there standards for sprockets?

Yes, sprockets are generally manufactured according to: ISO 606 - Roller chain sprockets; ANSI B29.1 - American National Standard for chain drives; DIN 8187 / 8188 - European standards for roller chain sprockets.

Double Row Duplex Transmission Bicycle Chain Driven Sprockets Free Wheel Sprocket

Name: Double Row Duplex Transmission Bicycle Chain Driven Sprockets Free Wheel Sprocket
Brand: Weifang Shengao Machinery Co., Ltd.
SKU: 766733472

Shandong, ChinaWeifang Shengao Machinery Co., Ltd.

US$0.50-10.00

200 Pieces

Product profile

Customization

Available

Application

Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car

Hardness

Hardened Tooth Surface

Model NO.

SA-006

Gear Position

External Gear

Manufacturing Method

Cast Gear

Toothed Portion Shape

Spur Gear

Material

Alloy

Type

Metal Forging Part

Name

Chain Sprocket

Condition

New

Certification

CE, RoHS, GS, ISO9001

Standard

DIN, ASTM, GOST, GB, JIS, ANSI, BS

Customized

After-Sales Service

as Specification

Warranty

as Specification

Place of Origin

Shandong, China

Appplication

Transmission Roller

Dimensions

as Your Requirement

Quality Control

100% Inspected

Advantages

Within 20 Days After Receiving Last Confirm Info

Unique

China Gold Supplier

Supply

Drawing Design

Standard or Nonstandard

Nonstandard

Transport Package

Pallet, Iron Frame, Flywood Box.

Specification

SGS

Trademark

ShengAo

Origin

Weifang City, Shandong Province

HS Code

87089910

Production Capacity

50000PCS/Month

Key features

High Efficiency Transmission: Efficiency ranges from 98-99% due to rolling friction between chain rollers and sprocket teeth.

Positive Drive No Slippage: Teeth physically engage the chain, ensuring a constant speed ratio without slippage under load.

Customizable Design: Dimensions and specifications can be customized according to customer drawings and requirements.

Wide Material Selection: Available in 45# Steel, 20CrMnTi, Stainless Steel, Nylon, Bakelite, Copper, and Aluminium.

High Torque Capacity: Handles extreme shock loads and high starting torque without slipping or tension deterioration.

Versatile Applications: Suitable for industrial machinery, agricultural equipment, bicycles, motorcycles, and conveyors.

Strict Quality Control: 100% inspected with ISO9001 certification and high-precision detection equipment.

Long Center Distance: Chains transmit power over much greater distances than gears, which require close centers.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Weifang Shengao Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.41h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.

Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.

After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.

Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.

Product Q&A

Q:What types of sprockets are available?

Sprockets are classified based on design and application: Single-strand and multi-strand sprockets for different chain widths; Standard, stub, or double pitch sprockets for various chain pitches; Drive or idler sprockets depending on their role in the system.

Q:What materials are sprockets made from?

Common materials include carbon steel, alloy steel, stainless steel, and cast iron. Hardened or heat-treated versions are available for high-wear applications. Specific options include 45#Steel, 20CrMnTi, 40Cr, 20CrNiMo, 20MnCr5, GCR15SiMn, 42CrMo, 2Cr13 stainless steel, Nylon, Bakelite, Copper, and Aluminium.

Q:How do I choose the correct sprocket?

Consider: Chain pitch and width; Number of teeth and desired gear ratio; Load, speed, and torque requirements; Environment (corrosive, high-temperature, or abrasive conditions).

Q:How do you install and maintain a sprocket?

Align sprocket with the chain or belt accurately. Ensure proper tension to avoid slippage or wear. Lubricate chains and inspect teeth regularly for wear or damage. Replace sprockets if teeth are worn or deformed.

Q:Can sprockets be used in high-speed applications?

Yes, but the sprocket material, tooth profile, and chain type must be selected to withstand the speed, torque, and wear conditions.