Product Range

Premium Power Transmission Products

A complete catalogue of world-class roller chain and shaft couplings — Diamond Chain by Timken and Lovejoy, supplied and supported across South Africa and the African continent.

All specifications shown are indicative for selection guidance. Request the datasheet for certified engineering values.

Diamond Chain

The Roller Chain Standard Since 1890

Manufactured in the USA by Diamond Chain, a Timken brand, this range sets the benchmark for tensile strength, fatigue resistance and wear life. Every chain is built from shot-peened, heat-treated components for the most demanding drives.

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Diamond ChainBS/ISO 606 & ANSI B29.1

Simplex Roller Chain

Single-strand precision roller chain, the workhorse of industrial power transmission. Solid bushings, solid rollers and heat-treated, shot-peened plates deliver superior fatigue strength and consistent wear life.

Pitch range 9.525 mm to 38.1 mm (06B to 24B series)
Solid bush and solid roller construction
Shot-peened plates and pre-stretched assemblies
Riveted and cotter-pin connecting options

Pitch range: 9.525 – 38.1 mm (06B – 24B)
Standards: BS/ISO 606, ANSI/ASME B29.1
Min. breaking load: 18.1 kN (08B-1) up to 92.1 kN (24B-1)
Typical speeds: Up to 15 m/s on well-maintained drives

Diamond ChainDouble-strand, higher capacity

Duplex Roller Chain

Two strands on a common pin deliver roughly double the load capacity of simplex chain for the same pitch — ideal when drive power grows but sprocket space does not.

Identical pitch and width dimensions to simplex
Common heat-treated pins across both strands
Ideal for compact high-power drives
Available in BS and ANSI series

Pitch range: 9.525 – 38.1 mm (06B-2 – 24B-2)
Min. breaking load: 36.2 kN (08B-2) up to 184 kN (24B-2)
Capacity gain: Approximately 2× simplex for equal pitch
Typical use: Conveyors, elevators, heavy machine drives

Diamond ChainTriple-strand, maximum density

Triplex Roller Chain

Three strands on shared pins pack maximum power transmission into the smallest possible sprocket envelope — the choice for extremely high-load drives where width is limited.

Triple the strand capacity on shared pins
Precision-matched strand assembly
Suited to compact, high-torque gearboxes
Custom pitch and length configurations on request

Pitch range: 9.525 – 38.1 mm (06B-3 – 24B-3)
Min. breaking load: 54.3 kN (08B-3) up to 276 kN (24B-3)
Capacity gain: Approximately 3× simplex for equal pitch
Typical use: Mining drives, crushing and milling plant

Diamond ChainThickened plates, severe duty

Heavy Series Roller Chain

Heavy-series chains use thicker link plates on standard-pitch dimensions, delivering dramatically higher fatigue strength and shock resistance without changing sprockets — engineered for mining, sugar mills and crushing duty.

Up to 30% thicker link plates than standard series
Significantly higher fatigue and shock capacity
Direct replacement on standard sprockets
Proven in mining, sugar and cement applications

Available sizes: ANSI 40H – 120H (12.7 – 38.1 mm pitch)
Plate thickness: Up to ~30% thicker than standard series
Fatigue strength: Substantially higher than standard series
Typical use: Mining, sugar mills, quarry and crushing plant

Diamond ChainCorrosion-resistant, washdown ready

Stainless Steel Roller Chain

AISI 304 and 316 stainless construction for washdown, food, chemical and marine environments where standard carbon steel chain would corrode. Also available with nickel plating for milder corrosive duty.

AISI 304 and 316 stainless options
Withstands washdown, chemical and salt exposure
Nickel-plated variants for moderate corrosion duty
Food and beverage industry applications

Materials: AISI 304 / 316 stainless steel
Pitch range: 9.525 – 38.1 mm
Min. breaking load: Approx. 65% of equivalent carbon steel chain
Typical use: Food and beverage, chemical, marine, wet processing

Diamond ChainDouble-pitch C-series with attachments

Extended Pitch Conveyor Chain

Double-pitch conveyor chain offers long, economical spans for conveying and elevating. Supplied with standard A, K and M attachments or custom bent attachments to suit your conveyor layout.

Pitches from 25.4 mm to 50.8 mm (C2040 – C2080)
A, K and M standard attachment types
Straight side-plate variants for sliding duty
Lightweight, economical long-centre conveying

Pitch range: 25.4 – 50.8 mm (C2040 – C2080)
Attachments: A1/A2, K1/K2, M types
Variants: Rolled and straight side plates, hollow pin
Typical use: Conveyors, elevators, packaging and bottling lines

Diamond ChainClips, cotters, offsets, sprockets

Connecting Links & Accessories

Genuine Diamond connecting links, offset links and accessories keep your drive genuine from end to end. Spring-clip links for small pitches, cotter-pin links for larger, and matched sprockets for every series.

Spring-clip connecting links (pitches up to 15.875 mm)
Cotter-pin connecting links (19.05 mm and above)
Offset (transition) links for odd strand counts
Matching sprockets and idler sprockets

Spring-clip links: For 06B – 10B (up to 15.875 mm pitch)
Cotter-pin links: For 12B and larger (19.05 mm pitch and above)
Offset links: Single and two-pitch offset types
Sprockets: Pilot-bored, taper-bushed and finished bore

Lovejoy

Flexible Coupling Solutions Since 1927

Lovejoy, a Timken brand, is a world leader in flexible mechanical power transmission couplings. From elastomeric jaw couplings to high-torque grid and gear couplings, Lovejoy solutions protect equipment, reduce downtime and keep drives running.

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LovejoyL-Series, elastomeric insert

Jaw & Spider Couplings

The industry-standard jaw coupling: two hubs with matching jaws, separated by a replacement elastomeric spider. Fail-safe by design, with maintenance-free operation and three spider materials to tune damping and temperature capability.

L-Series sizes 050 to 225
NBR, Hytrel and urethane spider options
Fail-safe — keeps running if the spider wears out
No lubrication required, drop-out assembly

Size range: L-050 to L-225
Nominal torque: Approx. 8.5 – 1,100 Nm depending on size and spider
Spider materials: NBR (-40 to +100°C), Hytrel (to +121°C), urethane
Typical use: Pumps, fans, compressors, general industry

LovejoyHigh torque, high performance

Disc & Gear Couplings

For severe-duty applications: maintenance-free disc couplings with high torsional stiffness for high-speed precision drives, and gear couplings for the highest torque density in the smallest envelope.

Disc couplings: no lubrication, no wear element
Gear couplings: highest torque per envelope size
Accommodate parallel, angular and axial misalignment
Sizes for pumps, turbines, compressors and mills

Disc coupling range: Multiple frame sizes for high-speed precision drives
Gear coupling range: High-torque sizes for heavy industrial drives
Misalignment: Parallel, angular and axial accommodation
Typical use: Turbines, compressors, paper mills, marine drives

LovejoyTapered steel grid, torsional damping

Grid Couplings

The tapered steel grid flexes to absorb shock loads and torsional vibration while transmitting high torque — a rugged, re-packable coupling for demanding drives like conveyors, crushers and pumps.

Tapered grid steel spring element
Exceptional torsional damping and shock absorption
Horizontal and vertically split cover options
Grid replacement extends coupling life in place

Size range: Sizes 1.5 to 10
Torque capability: From small pump drives to heavy mill duty
Covers: Horizontal split and vertical split options
Typical use: Conveyors, crushers, pumps, fans, mine winders

Need the Right Chain or Coupling?

Our team will help you size the correct product for your application — pitch, tensile requirements, bores and all. Request a quote or the full technical datasheet.

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Product Range Overview

Download a one-page summary of the full TruMotion product range, covering the Diamond Chain and Lovejoy ranges, key series and typical applications.

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