Description & Specifications
Nitro™ 20B-2 double metric roller chain is manufactured to ISO 606, BS 228 and DIN 8187 industry standards. 20B-2 is a double strand (Two Row) British Standard roller chain with a 31.75mm (1-1/4") pitch. Our highly quality metric roller chain is manufactured from quality raw materials that undergoes precision heat treatment and shot peening.
20B-2 Roller Chain Dimensions
- Pitch (P):31.75mm
- Inner Width (b1):19.56mm
- Roller Diameter (d1):19.05mm
- Overall Width (L):77.80mm
- Pin Diameter (d2):10.19mm
- Link Plate Height (h2):26.40mm
- Link Plate Thickness (T):3.5mm/4.50mm
- Transverse Pitch (Pt):36.45mm
- Average Tensile Strength:52,911 lbs
- Max Working Load:6,945 lbs
- No. Of Pitches/Links Per 10 Feet:96
- No. Of Connecting Links Included:1
- Industry Standard:ISO 606, DIN 8187, BS 228
- Chain Generation:N2
All dimensions listed are nominal values.
Manufactured with solid cold-forged rollers for smoother contact with the sprocket teeth and to resist distorting under heavy loads.
Built with solid cold-forged bushings for superior wear resistance that results in service life 2x to 3x greater than split bushing chains. See the solid bushing advantage.
After assembly, all Nitro chains are pre-loaded to a minimum load required by the industry standard. Pre-loading seats the chain joint that eliminates any initial elongation in a new chain.
Pre-lubricated in a special formulated lubricant through a hot-dipping process. This process is critical to ensure the lubricant penetrates and thoroughly coats the internals of the chain. The special lubricant offers better retention (less spin-out) and improved wear protection over chains that are cold-dipped.
Advanced heat treatment is applied to achieve optimum hardness for strength and wear resistance.
To combat fatigue failure from repetitive loads & wear, a compressive stress layer is added through shot peening.
Product Care & Maintenance
Maintenance and lubrication is crucial in the overall performance and life span of roller chain. Proper lubrication will reduce abrasion, chain wear, friction, noise and keep chains running cooler at higher RPM's. You can download the Nitro Roller Chain Care below.