28B Roller Chain

Product Overview  

The JQ® 28B Roller Chain is a premier heavy-duty metric transmission chain, precision-engineered in strict accordance with ISO 606 and DIN 8187 standards.

With a robust 44.45 mm (1.750") pitch, the 28B series is specifically designed for high-torque and high-load environments. Featuring Solid Bushing & Solid Roller (SBR type) construction and premium alloy steel, this chain delivers exceptional fatigue resistance and minimal elongation under the most grueling industrial conditions. It is the trusted choice for heavy machinery, mining equipment, and large-scale conveyor systems.

Key Features

• High Load Capacity: Engineered to handle massive tensile stress and extreme shock loads in heavy-duty drive systems.

• Full Metric Compliance: Guaranteed interchangeability with standard ISO/DIN 28B sprockets worldwide.

• SBR Technology (Solid Bushing & Roller): Our solid structure significantly reduces internal wear and friction compared to standard curled/split components.

• Advanced Case-Hardening: Pins, bushings, and rollers undergo precision heat treatment (HRC 50-55) for maximum surface hardness and superior core toughness.

• Factory Pre-Stretched: Every chain is mechanically pre-loaded to eliminate initial stretch, ensuring long-term operational stability and reduced maintenance intervals.

Technical Specifications (B-Series)

Heavy-Duty Industrial Applications

The JQ® 28B Roller Chain is a critical component in:

• Metallurgical Industry: Drive systems for steel mill cooling beds and heavy-duty transport conveyors.

• Mining & Quarrying: Power transmission for crushing equipment, vibrating screens, and heavy-duty bucket elevators.

• Heavy Construction Machinery: Reliable torque transfer for large-scale excavators and road-building equipment.

• Oil & Energy Sector: High-torque mud pump drives and auxiliary power transmission systems.

• Paper & Sugar Mills: Continuous, high-load operation in large-scale processing and milling lines.