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SKU: HTDPB723M09
HTD Timing Belt Pulleys
72-3M-09 HTD PULLEY PILOT BORE
£7.96
ex. VAT · £9.55 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
72
Pitch (mm)
3
Belt Width (mm)
9
Bore Type
Pilot Bore
Pitch Diameter (mm)
68.75
Outside Diameter (mm)
67.99
Face Width (mm)
14
Min Bore (mm)
8
Max Bore (mm)
42
Weight
0.04kg
Dimensions (L × W × H)
6.8 × 6.8 × 1.3 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 | HTDPB723M09 | Aroflex part number |
| Number of Teeth | 72 | |
| Pitch (mm) | 3 | |
| Belt Width (mm) | 9 | |
| Bore Type | Pilot Bore | |
| Pitch Diameter (mm) | 68.75 | |
| Outside Diameter (mm) | 67.99 | |
| Face Width (mm) | 14 | |
| Min Bore (mm) | 8 | |
| Max Bore (mm) | 42 | |
| Weight | 0.04 kg | |
| Dimensions | 6.8 × 6.8 × 1.3 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Material | Steel / Friction disc | Standard construction |
| Certification | ISO 9001:2015 | Quality assured |
72-3M-09 HTD Pilot Bore Timing Pulley
The high reduction-scale 72-3M-09 HTD Timing Pulley delivers stable mechanical reductions and positive-drive tracking. Spreading rotational forces across 9mm wide belts via an accurate 3mm curvilinear path, it minimizes timing jumps. Arriving as a pilot bore blank, the central hub gives engineers structural material leeway to ream out custom diameters or cut custom keyways.
Product Features & Specifications
- Tooth Configuration: 72 precision-machined heavy-duty teeth.
- Pitch & Belt Width: 3mm industrial pitch profile designed for narrow 9mm wide timing belts.
- Bore Status: Unfinished Pilot Bore center layout to facilitate specialized post-purchase reaming.
- Premium Material Properties: Extruded out of lightweight Aluminum UNI 9006 – T6 (Al) to prevent mass inertia latency.
- 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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