High-precision steel sprockets connected to industrial roller chains in a modern automated production environment

Transmission Parts

Industrial Roller Chain Sprockets

Precision power transmission components — ANSI B29.1 tooth profiles with induction-hardened teeth for zero-slip drives.

Overview

Built to your drawing, to your standard

Sprockets are the toothed wheels that engage roller chains to transmit rotary motion and torque between shafts with exact speed ratios — positive engagement, zero slip, essential for timing-critical drives and heavy shock loads.

MACHINING Force sprockets meet or exceed ANSI B29.1 standards, with tooth profiles precision-cut on CNC equipment and induction-hardened to extend service life under continuous operation. Type II hob-cut profiles are standard; Type III precision-cut available for high-speed drives.

ANSI 25 – 160 & ISO 06B – 32B roller chain
C45, 40Cr, 304/316 stainless, ductile iron GGG50
Induction-hardened teeth to HRC 45-55
Simplex, duplex, triplex, platewheel & idler
Pilot, keyway, taper lock or QD bushing bores
6 to 120 teeth per sprocket

Advantages

Why engineers specify Force Machining

SEC. 02 // ADVANTAGES

ANSI 25

160 & ISO 06B : 32B roller chain

C45, 40Cr, 304/316 stainless,

Engineered and verified in-house so field performance matches drawing intent.

Induction

hardened teeth to HRC 45:55

Simplex, duplex, triplex, platewheel

Engineered and verified in-house so field performance matches drawing intent.

Pilot, keyway, taper lock

Engineered and verified in-house so field performance matches drawing intent.

6 to 120 teeth

Engineered and verified in-house so field performance matches drawing intent.

Specifications

Typical technical envelope

Full material grades, dimensional envelope, load capacity and finish options are listed on the dedicated specifications page.

View Details

Applications

Where these parts perform

Conveyor drive & take-up systems
Agricultural harvesters & balers
Motorcycle & powersports final drives
Bucket elevator drives
Packaging indexing drives
Oilfield pumping units
Mining conveyors & feeders
Food processing washdown (stainless)

Technical Data

Headline performance figures

SEC. 05 // TECHNICAL DATA

Material

C45 carbon steel, 40Cr alloy steel, 304/316 stainless, or ductile iron GGG50

Chain standards

ANSI: 25, 35, 40, 50, 60, 80, 100, 120, 140, 160 · ISO: 06B – 32B

Tooth count

6 to 120 teeth depending on chain pitch and diameter

Bore configuration

Pilot bore, finished bore with keyway, taper lock or QD bushing

Material

Certified metallurgy at every heat

Every bar and blank arrives with a mill certificate. We match material grade to service duty — from general-purpose carbon steel to corrosion-resistant stainless and high-fatigue alloys.

SEC. 06 // MATERIAL

C45 carbon steel

Sourced from certified mills with EN 10204 3.1 material certificates on request.

40Cr alloy steel

Sourced from certified mills with EN 10204 3.1 material certificates on request.

304/316 stainless

Sourced from certified mills with EN 10204 3.1 material certificates on request.

or ductile iron GGG50

Sourced from certified mills with EN 10204 3.1 material certificates on request.

Manufacturing

From drawing to inspected part

SEC. 07 // PROCESS

Engineering & DFM Review

Our application engineers review your 2D drawing or 3D STEP model, run a design-for-manufacture study, and recommend material grade, heat treatment and surface finish to meet the specified duty cycle at the lowest landed cost.

Precision Manufacturing

CNC turning, 3–5 axis milling, cylindrical and internal grinding, gear hobbing, induction and case hardening — all performed in-house on calibrated equipment under IATF 16949-aligned process control.

Quality Verification

Statistical process control on critical dimensions, first-article (FAI/PPAP) approval, CMM traceable measurement, Rockwell/Brinell hardness mapping and Ra surface-roughness verification per ISO 9001:2015.

Preservation & Dispatch

VCI oil, desiccant sachet and heat-sealed PE for corrosion protection; ISPM-15 fumigation-free plywood cases; barcode labelling and pre-cleared export documentation for door-to-door delivery.

Industries

Trusted across demanding sectors

Our parts run inside gearboxes, drivelines and finished machinery for OEMs in a dozen industries — supported by full traceability and consistent global delivery.

SEC. 08 // INDUSTRIES

Automotive Tier 1 & Tier 2 OEM

Agricultural Machinery & Harvesters

Construction & Earth-Moving Equipment

Oil, Gas & Petrochemical Downstream

Mining, Aggregates & Bulk Handling

Steel Mills & Metallurgical Plants

Cement, Lime & Building Materials

Marine, Shipbuilding & Offshore

Power Generation & Renewables

Food, Beverage & Pharmaceutical

Water & Wastewater Treatment

General Industrial Machinery Builders

Quality Inspection

Six layers of verification

Every batch passes chemistry, dimension, hardness, balance, finish and NDT gates before it leaves the plant.

SEC. 09 // QC

Q.01

Material Certification (EN 10204 3.1)

Every heat is verified by optical emission spectrometry against the ordered grade. Certified mill test reports (MTC) accompany each shipment and are archived for ten years for full lot-to-lot traceability.

Q.02

Dimensional Inspection (CMM & FAI)

Zeiss and Mitutoyo coordinate measuring machines verify GD&T callouts to ISO 1101. First-article inspection (FAI) and PPAP Level 3 packages are issued for automotive and safety-critical parts on request.

Q.03

Hardness & Metallurgical Analysis

Rockwell (HRC), Brinell (HB) and micro-Vickers hardness maps confirm case depth and core properties. Metallographic sections are examined at 100–500× for grain size, phase distribution and inclusion rating.

Q.04

Dynamic Balancing (ISO 1940)

Rotating components — pulleys, sheaves and gears above 1,800 RPM — are dynamic-balanced to G6.3 as standard, with G2.5 available for high-speed drives. Residual unbalance is reported in g·mm per plane.

Q.05

Surface Finish & Coating Verification

Contact and non-contact Ra/Rz measurement, coating thickness by magnetic and eddy-current gauge, adhesion by cross-cut, and 500–1,000 h salt-spray corrosion testing per ASTM B117 on plated and painted parts.

Q.06

Non-Destructive Testing (NDT)

Magnetic particle (MPI), liquid dye penetrant (LPI) and ultrasonic (UT) inspection by ASNT Level II operators. Radiographic (RT) inspection subcontracted to accredited third-party labs when required.

SEC. 10 // PACKAGING

Export-grade packaging

VCI film wrap and rust-inhibitor oil protect machined surfaces for up to 12 months of storage or transit
Individual foam, corrugated dividers or moulded PE cradles isolate parts from impact and abrasion
Fumigation-free plywood cases certified to ISPM-15 accepted at every major port worldwide
Barcode labels, part-number marking and customer-branded packaging (private label) available on request
Loose, bulk, palletised or kitted assemblies — packed to your inbound receiving specification

SEC. 11 // SHIPPING

Global shipping desk

Incoterms 2020: FOB Shanghai / Ningbo / Qingdao standard, with EXW, CIF, CFR, DDP and DAP on request
Air freight, sea LCL and FCL, and China–Europe rail coordinated in-house — no forwarder hand-offs
Full export document set — Certificate of Origin (CO / Form A / FTA), packing list, commercial invoice, B/L and material test certificate
Delivered to 40+ countries; established freight lanes to Germany, USA, Italy, Poland, Türkiye, Brazil, Mexico and Australia
Real-time shipment tracking and consolidated container loading for multi-SKU orders

Downloads

Datasheets and inspection templates

SEC. 12 // DOWNLOADS

Product Catalogue (PDF)

PDF · On request

Material Specification Sheet

PDF · On request

Inspection Sample Report

PDF · On request

FAQ

Answers before you ask

The questions our sales engineers hear most often. Missing something? Message us — a real engineer replies within one business day.

SEC. 13 // FAQ

Standard catalogue items ship from stock in single pieces. Custom-machined parts typically start at 20 pieces per SKU, with lower prototype quantities of 1–5 accepted at a modest set-up charge. For high-volume programmes we scale to 100,000+ pieces per year.

Yes — full OEM/ODM capability. Send a 2D drawing (PDF, DWG, DXF), a 3D model (STEP, IGES, X_T) or a physical reference sample. Our engineers issue a DFM review, firm quotation and lead time within one business day. Under NDA we treat every drawing as customer IP and never share it with third parties.

Turning and milling routinely hold ±0.02 mm and Ra 0.8 μm. Ground journals reach IT5 / ±0.005 mm and Ra 0.2 μm. Bore concentricity to 0.01 mm TIR, gear quality to DIN 6 / AGMA 12. Tighter tolerances are quoted on a feature-by-feature basis.

Standard parts ship in 2–3 weeks. Custom-machined and heat-treated parts run 4–6 weeks. Tooling-intensive items (large forgings, sand-cast blanks) or full PPAP approval add 1–2 weeks. Airfreight sample runs can compress this to 10 working days.

Yes. Every shipment includes an EN 10204 3.1 material test certificate (MTC), a dimensional inspection report and — on request — Rockwell/Brinell hardness readings, dynamic balancing reports (ISO 1940) and NDT results (MPI, LPI, UT). PPAP Level 1–5 packages are issued for automotive customers.

The plant is certified to ISO 9001:2015 with an internal quality system aligned to IATF 16949 for automotive customers. Environmental management follows ISO 14001, and welded pressure parts are produced under EN ISO 3834 procedures with certified welders.

Absolutely. We sign mutual NDAs before quotation, restrict drawings to a need-to-know engineering team, and never publish customer part numbers, photos or applications without written approval. Dedicated tooling remains customer property and is stored under lot ID for repeat orders.

Incoterms 2020: EXW, FOB, CFR, CIF, DAP, DDP. Invoicing in USD, EUR, GBP or CNY. Standard terms are 30% T/T deposit with balance against B/L copy; irrevocable L/C at sight is welcomed for orders above USD 30,000, and open account (Net 30–60) is available for approved repeat customers.

Yes. We ship DDP to customer warehouses across the EU, UK, North America, Türkiye and Australia, and support call-off kanban, VMI and consignment stock programmes for repeat OEM customers.

Send your drawing or reference sample to our sales engineers via the inquiry form on this page or by email. You will receive a DFM review, sample quotation and realistic lead time within one business day, followed by an initial sample and inspection report before series release.

Variants engineered for every drive

SEC. 14 // RELATED

Simplex Hub Sprocket (A-Plate)

Single-strand sprocket with integral hub, keyway and set screws — the most common configuration for standard chain drives.

Learn more

Duplex Double-Row Sprocket

Two parallel tooth rows on a common hub for duplex chain, doubling torque capacity without increasing sprocket diameter.

Learn more

Taper-Bored Sprocket

Internal taper bore accepts a taper lock or QD bushing for easy mounting, removal and shaft-size interchangeability.

Learn more

Idler Sprocket with Bearing

Free-spinning sprocket with integral ball bearing used as a chain tensioner or to change chain path direction.

Learn more

Platewheel Sprocket

Flat sprocket without integral hub, bolted to a flange or hub assembly on large-diameter applications.

Learn more

Stainless Steel Sprocket

304 or 316 stainless for food processing, pharmaceutical, marine and chemical washdown environments.

Learn more

Related Materials

Explore adjacent product families

SEC. 15 // MATERIALS

Cast Iron Bar

Continuous cast gray and ductile iron bar for machined blanks.

View range

Nickel Bar

Nickel and nickel-alloy bar for corrosion-critical service.

View range

Welded Pipes

ERW, LSAW and SSAW pipe for structural and fluid applications.

View range

Insights

From the engineering desk

SEC. 16 // ARTICLES

Article

Industrial Materials — The Selection Guide

Match cast iron, carbon steel, alloy steel, stainless and nickel alloys to mechanical, corrosion and thermal duty.

Read

Article

CNC Machining — A Buyer's Guide

3-axis vs 4- vs 5-axis, realistic tolerance envelopes, and how to write a drawing that quotes low.

Read

Article

Industrial Inspection Methods

CMM, spectrometer, hardness, NDT and balancing — what each proves and when to specify it.

Read

Request a Quote

Send drawings, target quantities and material grade. Firm pricing back within one business day.

Start inquiry

Download Catalogue

Complete range, material grades, dimensional envelope and load ratings — the working PDF our engineers use.

Get PDF

Contact Sales

Prefer a call? Book a slot with a sales engineer for spec review and lead-time planning.

Talk to sales

Send inquiry

Get pricing and lead time

Share drawings, materials and target quantities — a real engineer replies.

Start a project

Ready to work with Force Machining?

Send drawings, specs or a rough idea — our engineers get back within one business day.

Consult an Engineer