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SKU: 20B-3.CONN
British Standard Connecting Link
20B-3 Connecting Link For British Standard Series Chain
£8.87
ex. VAT£10.64 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Product Type
Connecting Link (Master Link)
Chain Series / Size
20B BS/ISO
Strand Configuration
Triple Strand (Triplex)
Manufacturing Standard
BS 228 / ISO 606 (20B) / DIN 8187
Pitch (P)
31.75 mm (1.250 in / 1-1/4")
Roller Diameter (d1)
19.05 mm (0.750 in)
Inner Width (b1)
19.56 mm (0.770 in)
Pin Diameter (d2)
10.19 mm (0.401 in)
Plate Height (h2)
26.40 mm (1.039 in)
Plate Thickness (T)
3.50 mm (0.138 in)
Min. Ultimate Tensile Strength
202 lbf), 250.0 kN (56
Material & Finish
High-Grade Heat-Treated Carbon / Alloy Steel
Special Feature / Design
Standard British Series
Unit / Package Type
Each
Weight
0.5kg
Standards & Fit
JS9
JS9 Keyway
Tight fit anti-roll standard
H7
Precision Transition Fit
Precision bore fit
ISO
ISO 9001:2015
Quality Assured
| Parameter | Value | Notes |
|---|---|---|
| SKU | 20B-3.CONN | Aroflex part number |
| Product Type | Connecting Link (Master Link) | |
| Chain Series / Size | 20B BS/ISO | |
| Strand Configuration | Triple Strand (Triplex) | |
| Manufacturing Standard | BS 228 / ISO 606 (20B) / DIN 8187 | |
| Pitch (P) | 31.75 mm (1.250 in / 1-1/4") | |
| Roller Diameter (d1) | 19.05 mm (0.750 in) | |
| Inner Width (b1) | 19.56 mm (0.770 in) | |
| Pin Diameter (d2) | 10.19 mm (0.401 in) | |
| Plate Height (h2) | 26.40 mm (1.039 in) | |
| Plate Thickness (T) | 3.50 mm (0.138 in) | |
| Min. Ultimate Tensile Strength | 202 lbf), 250.0 kN (56 | |
| Material & Finish | High-Grade Heat-Treated Carbon / Alloy Steel | |
| Special Feature / Design | Standard British Series | |
| Unit / Package Type | Each | |
| Weight | 0.5 kg | |
| Certification | ISO 9001:2015 | Quality assured |
The 20B-3 Connecting Link For British Standard Series Chain (master link / joiner link) is engineered for fast, reliable closure and connection of 20B Triple Strand (Triplex) British Standard Chains. Fully conforming to BS 228 / ISO 606 (20B) / DIN 8187, this connecting link preserves original drive tensile integrity (250.0 kN (56,202 lbf)) without compromising operating security.
Key Technical Specifications & Advantages
- Direct OEM Fitment: Precision-matched to 31.75 mm (1.250 in / 1-1/4″) pitch, 19.56 mm (0.770 in) inner width, and 10.19 mm (0.401 in) pin diameter for seamless chain integration.
- Full Rated Breaking Load: Case-hardened alloy pins withstand rated dynamic fatigue and shock loads up to 250.0 kN (56,202 lbf).
- Fast Field Installation: Engineered for quick disassembly and reassembly during routine plant maintenance or field emergency repairs.
- Finish & Material: High-Grade Heat-Treated Carbon / Alloy Steel. Precision-formed retainer clip/pins ensure tight retention under high-speed operation.
Maintenance Application
Essential spare part for maintenance engineering teams, plant operations, and conveyor line mechanics utilizing 20B BS series chain.
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