DUROCHAIN 20B Roller Chain
Carbon Steel Chains
| Features | Premium/Premier | General Duty Plus | Economy Plus |
|---|---|---|---|
| Solid Bushings | Split Bushings in most cases | Split Bushings | |
| Solid Rollers | |||
| Through-Hardened Pins | Case-Hardened Pins | Heat-Treated Pins | |
| Case-Hardened Rollers | Heat-Treated in Some Chains | ||
| Case-Hardened Bushings | Heat-Treated in Some Chains | ||
| Wide Contour Plates | Standard Contour Plates | Standard Contour Plates | |
| Superior Pin to Plate Contact | |||
| High-Hold Riveting | Standard Dual-Stake Rivets | Standard Dual-Stake Rivets | |
| Factory Pre-Loading | Not Standard on Economy Chains | ||
| Specific Heat-Treatment on Every Component | Some Components Might be Heat-Treated | ||
| Premium Alloy & Carbon Materials | High-Quality Carbon Materials | Standard-Quality Carbon Materials | |
| Shot-Peened Components | Non Shot-Peened Components | Non Shot-Peened Components | |
| High-Precision Components | Standard Precision Components | Low Precision Components | |
| Conforms to ANSI B29.1 or ISO/DIN Standards |
Experience the DUROCHAIN Difference.
DUROCHAIN Premium #20B metric roller chain is built for dependable power transmission, smooth operation, and extended service life in demanding industrial applications. Manufactured to applicable ISO and British Standards, this chain provides accurate dimensional compatibility with metric roller chain systems and components.
Featuring a 31.75mm pitch, DUROCHAIN #20B metric roller chain is a reliable choice for industrial machinery, conveyor systems, material handling equipment, packaging machinery, agricultural equipment, and other power transmission applications requiring consistent performance.
Built for rock-solid reliability and extended service life, every DUROCHAIN #20B roller chain is manufactured using premium carbon steel components, through-hardened pins, solid bushings, solid rollers, quad-staked rivets, precision-prepared plate holes, and factory-applied lubrication to help improve strength, wear resistance, shock-load capability, and overall operating performance.
DUROCHAIN Premium #20B Metric Roller Chain Features
Through-Hardened Pins
DUROCHAIN pins are through-hardened for increased strength, improved wear resistance, and dependable performance throughout the service life of the chain.
Solid Bushings & Rollers
Precision solid bushings and solid rollers provide smooth bearing surfaces that help reduce internal friction, resist deformation, and improve overall wear life.
Superior Plate Hole Preparation
Precision-prepared plate holes help promote accurate component fitment, reduce stress points, and improve fatigue resistance in demanding power transmission applications.
Max Contour Side Plates
Max contour side plates are designed to add strength where it matters while maintaining ANSI dimensional requirements for proper interchangeability.
Quad-Staked Rivets
High-hold quad-staked rivets help improve chain integrity, side-load capability, shock-load resistance, and dependability in demanding industrial applications.
Factory Preload
Factory preloading helps properly seat chain components before installation, reducing initial elongation and helping the chain settle in faster once placed into service.
DUROCHAIN 20B Roller Chain Specifications
- Part #: 20B
- Pitch (P): 31.75mm
- Roller Width (R): 19.56mm
- Roller Diameter (D): 19.05mm
- Overall Width (W): 43.20mm
- Connecting Link Overall Width (X): 49.30mm
- Plate Height (H): 26.40mm
- Plate Thickness (T): 4.50mm
- Pin Diameter (L): 10.19mm
- Minimum Breaking Load: 24,912.24 LBS
- Weight Per Foot: 2.42 LBS
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