| Feature | Specification |
|---|---|
| Pitch | 1.25″ / 31.75 mm |
| Roller Diameter | 19.05 mm |
| Inner Width | 19.56 mm |
| Plate Height | approx. 26.3 mm |
| Pin Diameter | 10.19 mm |
| Weight | approx. 3.85 kg/m |
| Tensile Strength | ~95 kN |
| Material | Case-hardened carbon steel |
| Standards | ISO 606 / DIN 8187 / BS |
| Configuration | Simplex (1-strand) |
The Renold SD 20B‑1 is a high-quality standard-duty (economy) roller chain with a 1¼″ (31.75 mm) pitch, perfect for reliable power transmission in industrial and agricultural applications. Made from case-hardened carbon steel, this simplex chain offers proven durability and precise performance.
Key Specifications:
Pitch: 1.25″ / 31.75 mm
Roller Diameter: 19.05 mm
Inner Width: 19.56 mm
Plate Height: approx. 26.3 mm
Pin Diameter: 10.19 mm
Weight: approx. 3.85 kg/m
Tensile Strength: ~95 kN
Standards: ISO 606 / DIN 8187 / BS (European & ANSI compatibility)
Why choose Renold SD 20B‑1?
High-quality carbon steel construction ensures excellent fatigue resistance and longevity.
Global standard compliance ensures easy interchangeability and reliability.
Simplex design delivers efficient and consistent power transfer.
Wide industrial suitability—ideal for conveyors, farming equipment, machinery, and automotive drives.
Pre-cut lengths & bulk options available for tailored installations and cost savings.
Renold is a globally recognized brand with consistent manufacturing standards and wide availability in both EU and ANSI formats.
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Q1: What does "SD" stand for?
“SD” means Standard Duty, a cost-effective chain for less demanding industrial uses with reliable performance.
Q2: Is 20B‑1 chain compatible with BS and ANSI systems?
Yes, the Renold SD 20B‑1 conforms to European (BS) and ANSI standards, ensuring broad compatibility.
Q3: What is the chain’s tensile strength?
This chain has a nominal breaking strength of approximately 95 kN, suitable for heavy loads.
Q4: What lengths are available?
Available in pre-cut boxes such as 2.5 m, 10 ft, or supplied in bulk rolls for custom requirements.
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