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SKU: 48B-3.SCRANK
British Standard Single Crank Link
48B-3 Single Crank Link For British Standard Series Chain
£239.30
ex. VAT£287.16 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Product Type
Single Crank Link (Offset Half-Link)
Chain Series / Size
48B BS/ISO
Strand Configuration
Triple Strand (Triplex)
Manufacturing Standard
BS 228 / ISO 606 (48B) / DIN 8187
Pitch (P)
76.20 mm (3.000 in / 3")
Roller Diameter (d1)
48.26 mm (1.900 in)
Inner Width (b1)
45.72 mm (1.800 in)
Pin Diameter (d2)
29.24 mm (1.151 in)
Plate Height (h2)
63.80 mm (2.512 in)
Plate Thickness (T)
10.00 mm (0.394 in)
Min. Ultimate Tensile Strength
1500.0 kN (337, 213 lbf)
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 | 48B-3.SCRANK | Aroflex part number |
| Product Type | Single Crank Link (Offset Half-Link) | |
| Chain Series / Size | 48B BS/ISO | |
| Strand Configuration | Triple Strand (Triplex) | |
| Manufacturing Standard | BS 228 / ISO 606 (48B) / DIN 8187 | |
| Pitch (P) | 76.20 mm (3.000 in / 3") | |
| Roller Diameter (d1) | 48.26 mm (1.900 in) | |
| Inner Width (b1) | 45.72 mm (1.800 in) | |
| Pin Diameter (d2) | 29.24 mm (1.151 in) | |
| Plate Height (h2) | 63.80 mm (2.512 in) | |
| Plate Thickness (T) | 10.00 mm (0.394 in) | |
| Min. Ultimate Tensile Strength | 1500.0 kN (337, 213 lbf) | |
| 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 48B-3 Single Crank Link For British Standard Series Chain (offset half-link) allows precise length adjustments on 48B Triple Strand (Triplex) British Standard Chains by adding or subtracting an odd number of pitches (1 pitch = 76.20 mm (3.000 in / 3″)). Conforming to BS 228 / ISO 606 (48B) / DIN 8187, it provides the ideal solution for fixed center-distance drives requiring fine chain tensioning.
Key Technical Specifications & Advantages
- Accurate Chain Tensioning: Solves center-distance alignment challenges where idler sprockets or adjustable take-up frames cannot be installed.
- Contoured Offset Link Plates: Formed from high-tensile heat-treated alloy steel to distribute stress evenly across the crank offset geometry.
- Matched Precision Dimensions: Formed to exact 76.20 mm (3.000 in / 3″) pitch, 45.72 mm (1.800 in) inner width, and 48.26 mm (1.900 in) roller/bushing diameter.
- Heavy-Duty Hardened Pin: Supplied complete with precision-ground pin and secure fastener clip.
Operating Recommendation
Designed for intermediate chain tension adjustment on British Standard conveyor and drive installations.
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