40B-2 Roller Chain

Product Overview

The 40B-2 Roller Chain is a duplex (double-strand) metric-series power transmission chain, manufactured strictly according to ISO 606 and DIN 8187 standards.

With a precise 25.40 mm (1.000") pitch, this B-series duplex chain is engineered for ISO/DIN-compliant machinery, offering higher load capacity than single-strand chains while maintaining exceptional durability and performance.

Constructed from premium alloy steel with Solid Bushing & Solid Roller (SBR type) technology, the 40B-2 chain ensures excellent fatigue resistance, minimal elongation, and long service life, even under continuous operation and demanding industrial conditions.

Primarily designed for power transmission, with suitability for light conveyor or auxiliary drive systems.

 Key Features

• Duplex Design for Higher Load Capacity
  Two parallel strands increase tensile strength and reduce stress on individual links

• Full Metric Compliance
  Designed for ISO/DIN standard sprockets for precise fit and efficient operation

• Solid Bushing & Solid Roller Construction (SBR type)
  Reduces internal friction and enhances wear resistance

• Advanced Heat Treatment
  Pins, bushings, and rollers are case-hardened for optimal hardness and durability

• Factory Pre-Stretched
  Minimizes initial elongation and reduces maintenance requirements

• Pre-Lubricated
  Deep-dip lubricated with high-performance industrial oil for smooth operation from the start

Technical Specifications (Duplex B-Series)

Industrial Applications

The 40B-2 Duplex Roller Chain is widely used in:

• Heavy-Duty Industrial Power Transmission
  Gearboxes, compressors, pumps, and high-torque machinery drives

• Automation & Manufacturing Equipment
  Synchronized dual-strand drive systems for high-speed and high-load applications

• Food & Packaging Machinery
  Bottling, packaging, and conveying lines requiring higher load capacity

• Light-Duty Material Handling / Conveyor Drives
  Suitable for auxiliary conveyors and transfer systems

• Agricultural Machinery (Light to Medium Duty)
  Small tractors, harvesters, and irrigation equipment

Note: Primarily for power transmission, not for heavy-duty bulk material conveying.

Product Advantages

• Higher load capacity compared to single-strand chains

• Excellent fatigue strength and minimal elongation

• Stable, efficient, and reliable power transmission

• Compatible with standard ISO/DIN sprockets

• Long service life with reduced maintenance requirements