Sprockets: Bore Diameter 20mm to 200mm, Pitch 12.7mm to 152.4mm

Component Specifications

Definition

Sprockets are precision-engineered mechanical components featuring teeth or cogs designed to mesh with the links of a chain, converting rotational motion into linear motion or transmitting torque between shafts. In undercarriage systems, they serve as critical driving elements that interface with track chains in crawler-type machinery, ensuring synchronized movement and load distribution across the entire track assembly.

Working Principle

Sprockets operate on the principle of positive engagement, where their teeth precisely fit into the gaps between chain links. As the sprocket rotates, it pulls the chain along its path, creating a continuous drive mechanism. The tooth profile is engineered to minimize wear, reduce noise, and maintain consistent chain tension throughout operation.

Materials

Typically manufactured from high-strength alloy steels (such as 4140, 4340, or SCM440), often heat-treated through carburizing, induction hardening, or through-hardening processes to achieve surface hardness of 55-65 HRC with tough cores. Special applications may use stainless steels, cast iron, or engineered polymers.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pitch	12.7mm to 152.4mm
Hardness	55-65 HRC surface
Face Width	15mm to 100mm
Bore Diameter	20mm to 200mm
Pressure Angle	30° to 35°
Number Of Teeth	10 to 50 teeth
Weight Capacity	Up to 50,000 kg per sprocket

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 606, DIN 8187, ANSI B29.1

Parent Products

This component is used in the following industrial products

Undercarriage

The structural base assembly of a hydraulic excavator that supports the upper structure and provides mobility.

View Product Details

Engineering Analysis

Risks & Mitigation

Tooth breakage under shock loads
Premature wear from misalignment
Chain jumping due to worn teeth
Corrosion in harsh environments
Fatigue failure from cyclic loading

FMEA Triads

Trigger: Improper alignment during installation
Failure: Uneven tooth wear leading to chain slip and reduced power transmission efficiency
Mitigation: Use laser alignment tools during installation and implement regular alignment checks in maintenance schedules

Trigger: Inadequate lubrication
Failure: Increased friction causing accelerated wear and potential seizure
Mitigation: Establish automated lubrication systems with proper intervals and use high-temperature, extreme-pressure lubricants

Trigger: Overloading beyond design capacity
Failure: Tooth bending or breakage resulting in complete drive failure
Mitigation: Install load monitoring systems and implement operational limits based on manufacturer specifications

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Tooth profile tolerance: ±0.05mm, Bore tolerance: H7/h6, Runout: ≤0.1mm TIR

Test Method

Dimensional verification via CMM, hardness testing per Rockwell scale, non-destructive testing (magnetic particle or dye penetrant), and load testing on dedicated test rigs

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Sprockets

Manufacturer profiles associated with Sprockets.

Sourcing Sprockets from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

How do I determine when to replace a sprocket?

Replace sprockets when teeth show significant hooking (curving forward), wear exceeds 10% of original tooth thickness, or when accompanied by chain replacement to prevent accelerated wear.

Can sprockets from different manufacturers be interchanged?

Only if they match exact specifications including pitch, tooth count, bore diameter, and mounting configuration. Always verify compatibility with chain specifications.

What causes premature sprocket wear?

Common causes include misalignment, improper chain tension, contaminated lubrication, mismatched chain/sprocket combinations, and overload conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Sprockets