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SKU: HTDPB408M20
HTD Timing Belt Pulleys
40-8M-20 HTD PULLEY PILOT BORE
£19.39
ex. VAT · £23.27 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
40
Pitch (mm)
8
Belt Width (mm)
20
Bore Type
Pilot Bore
Pitch Diameter (mm)
101.86
Outside Diameter (mm)
100.49
Face Width (mm)
28
Min Bore (mm)
15
Max Bore (mm)
60
Weight
1.2kg
Dimensions (L × W × H)
10 × 10 × 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 | HTDPB408M20 | Aroflex part number |
| Number of Teeth | 40 | |
| Pitch (mm) | 8 | |
| Belt Width (mm) | 20 | |
| Bore Type | Pilot Bore | |
| Pitch Diameter (mm) | 101.86 | |
| Outside Diameter (mm) | 100.49 | |
| Face Width (mm) | 28 | |
| Min Bore (mm) | 15 | |
| Max Bore (mm) | 60 | |
| Weight | 1.2 kg | |
| Dimensions | 10 × 10 × 2.8 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Certification | ISO 9001:2015 | Quality assured |
40-8M-20 HTD Pilot Bore Timing Pulley
The 40-8M-20 HTD Pilot Bore Timing Pulley provides smooth, high-torque synchronous power transmission for custom industrial drives. Engineered with a clean 8mm curvilinear pitch, its 40 teeth mesh precisely with 20mm wide timing belts to maximize system registration and lower friction wear. This component comes in an unmachined pilot bore style, giving machine builders an adaptable foundation to turn, ream, or keyway the inner core to exact shaft requirements.
Product Features & Specifications
- Tooth Configuration: 40 precision-machined HTD synchronous teeth.
- Pitch & Belt Width: High-Torque Drive 8mm profile designed specifically for standard 20mm wide belts.
- Bore Status: Plain unmachined stock hub with a minimal guide hole to ensure true lathe centering.
- Industrial Materials: Machined from solid high-tensile Steel (St) or rigid Cast Iron (GG) for robust operational life.
- 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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