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SKU: HTDPB568M20
HTD Timing Belt Pulleys
56-8M-20 HTD PULLEY PILOT BORE
£34.17
ex. VAT · £41.00 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
56
Pitch (mm)
8
Belt Width (mm)
20
Bore Type
Pilot Bore
Pitch Diameter (mm)
142.6
Outside Diameter (mm)
141.23
Face Width (mm)
28
Min Bore (mm)
15
Max Bore (mm)
90
Weight
2.5kg
Dimensions (L × W × H)
15 × 15 × 2.8 cm
Overall envelope
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 | HTDPB568M20 | Aroflex part number |
| Number of Teeth | 56 | |
| Pitch (mm) | 8 | |
| Belt Width (mm) | 20 | |
| Bore Type | Pilot Bore | |
| Pitch Diameter (mm) | 142.6 | |
| Outside Diameter (mm) | 141.23 | |
| Face Width (mm) | 28 | |
| Min Bore (mm) | 15 | |
| Max Bore (mm) | 90 | |
| Weight | 2.5 kg | |
| Dimensions | 15 × 15 × 2.8 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Certification | ISO 9001:2015 | Quality assured |
56-8M-20 HTD Pilot Bore Timing Pulley
The mid-scale 56-8M-20 HTD Pilot Bore Timing Pulley strikes an excellent balance between mechanical leverage and layout flexibility. Meshing smoothly with 20mm wide timing belts via its 56 curvilinear teeth, it secures total power translation without mechanical slip. Provided as a blank pilot bore variant, the central hub gives engineers structural material leeway to ream out custom diameters.
Product Features & Specifications
- Tooth Configuration: 56 precision-machined heavy-duty teeth.
- Pitch & Belt Width: 8mm industrial pitch profile designed for 20mm wide timing belts.
- Bore Adaptability: Unfinished Pilot Bore center layout to facilitate specialized post-purchase reaming.
- Industrial Materials: Built with premium high-strength Cast Iron (GG) or solid heavy Steel (St).
- Boring & Keying Readiness: Provided in standard raw stock configuration. Tailor the internal bore sizes directly to your shafts via our In-House Machining Services.
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