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Gear, DA21708

Gear DA21708

Product Overview

Gear DA21708 is a precision transmission component designed for compatible commercial vehicle mechanical systems. As a toothed power-transmission element, it works with mating gears or related drivetrain components to transfer rotational motion and torque within the designated assembly.

For heavy-duty vehicles, gears operate under repeated torque, vibration, speed changes, and varying loads. Tooth geometry, material strength, dimensional accuracy, and correct installation are therefore critical to achieving reliable engagement and minimizing premature wear.

Identified by part number DA21708, this product is suitable for truck parts distributors, transmission repair workshops, fleet maintenance companies, wholesalers, and international commercial vehicle aftermarket buyers.

Product Features

  • Part Number: DA21708

  • Designed for compatible commercial vehicle transmission or mechanical assemblies

  • Precision-machined gear tooth profile

  • Supports consistent engagement with mating components

  • Designed for repeated rotational loading

  • Helps transmit mechanical power within the designated assembly

  • Suitable for replacement during drivetrain maintenance

  • Compact design for integration into existing mechanisms

  • Suitable for wholesale and aftermarket supply

  • Available for bulk purchasing and international distribution

Applications

The Gear DA21708 is intended for compatible commercial vehicle drivetrain or transmission-related assemblies.

Gears are responsible for transferring rotational force between shafts and other mechanical components. Their tooth profile and positioning determine how effectively motion and torque are transmitted. In commercial vehicles, gears may experience substantial loads during acceleration, gear changes, climbing, braking, and operation under heavy payloads.

A gear may need inspection or replacement if abnormal noise, tooth damage, excessive backlash, vibration, or visible surface wear develops within the related assembly. Because gear wear can also result from lubrication problems or damage to mating components, the complete gear set should be inspected during service.

For transmission repair workshops, DA21708 can be used as an application-specific replacement component. Distributors and fleet operators can also stock the reference for scheduled drivetrain maintenance and repair requirements.

Technical Parameters

ItemSpecification
Product NameGear
Part NumberDA21708
Product CategoryTransmission / Drivetrain Component
ApplicationCommercial Vehicle / Truck
Main FunctionPower and Torque Transmission
Product TypeReplacement Gear
EngagementMating Gear Assembly
InstallationVehicle Mechanical / Transmission System
CompatibilityTo Be Confirmed by Application
Supply TypeWholesale / Bulk Supply
CustomizationAvailable for Qualified Projects
OriginChina
SupplierSINOSENCO (SHANDONG) TRANSMISSION CO., LTD

Technical Specification Details

The exact specifications of DA21708 should be confirmed against the original gear and its application. Depending on the design, important parameters may include:

  • Number of teeth

  • Module

  • Pressure angle

  • Pitch diameter

  • Outside diameter

  • Root diameter

  • Gear width

  • Bore diameter

  • Keyway or spline configuration

  • Material grade

  • Heat-treatment specification

  • Surface hardness

  • Gear accuracy grade

  • Rotation direction

For precise identification, customers can provide the original gear, dimensional drawing, photographs, transmission model, or other application information.

Customization Capability

SINOSENCO can evaluate customized gear requirements for OEM projects, transmission specialists, distributors, and high-volume buyers.

Possible customization areas include:

  • Number of teeth

  • Gear dimensions

  • Tooth profile

  • Module

  • Pressure angle

  • Bore size

  • Spline configuration

  • Keyway design

  • Material selection

  • Heat treatment

  • Surface hardness

  • Dimensional tolerances

  • Surface finishing

  • Product marking

  • Packaging

For customized gear production, an engineering drawing or original sample is strongly recommended. Technical information regarding load requirements, rotational speed, mating gear specifications, and material standards can further improve production accuracy.

Private-label packaging, customer-specific labels, individual packing, and export cartons can also be evaluated for suitable order volumes.

FAQ

What is Gear DA21708?

Gear DA21708 is a commercial vehicle gear identified by part number DA21708, designed to transfer rotational movement and torque within a compatible transmission or mechanical assembly.

What does a gear do in a vehicle?

A gear transfers mechanical power between rotating components while controlling the relationship between speed, torque, and rotational direction.

What can cause gear wear?

Common factors include high operating loads, insufficient lubrication, contamination, incorrect alignment, excessive backlash, repeated shock loading, and long-term service.

What are signs of a damaged gear?

Possible symptoms include abnormal transmission noise, vibration, difficulty engaging a mechanical function, excessive backlash, or visible tooth pitting, chipping, or deformation.

Is DA21708 compatible with all commercial vehicles?

No. Gear dimensions and tooth geometry are application-specific. The part number, transmission model, mounting arrangement, and mating gear specifications should be verified before purchase.

How can I verify Gear DA21708?

Provide the DA21708 reference together with the vehicle or transmission model, original gear photograph, dimensions, tooth count, bore details, or a physical sample.

Can I purchase DA21708 in bulk?

Yes. Bulk orders can be supplied for transmission repair workshops, commercial vehicle distributors, wholesalers, importers, and fleet maintenance companies.

Can the gear be customized?

For qualified OEM and high-volume projects, customized tooth profiles, dimensions, materials, heat treatment, hardness, spline configuration, and other technical specifications can be evaluated.

Can I provide an original gear for matching?

Yes. A physical sample is useful for checking tooth geometry, dimensions, bore configuration, material characteristics, and other application-specific details.

Can customized packaging be supplied?

Yes. Customer-branded labels, individual packaging, cartons, product identification, and export packaging can be arranged according to order requirements.

What should be checked before installing a replacement gear?

The tooth profile, dimensions, mating gear, shaft or spline configuration, alignment, lubrication condition, and related components should be checked to ensure the replacement is suitable.

Does SINOSENCO supply other transmission components?

Yes. Customers can provide OE numbers, product samples, photographs, or complete transmission parts lists for sourcing additional commercial vehicle drivetrain components.

What information is needed for a quotation?

Please provide DA21708, required quantity, vehicle or transmission model, destination country, and packaging requirements. An original gear sample, technical drawing, or clear photograph is recommended for accurate matching.