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SKU: HTDPB725M25
HTD Timing Belt Pulleys
72-5M-25 HTD PULLEY PILOT BORE
£32.32
ex. VAT · £38.78 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
72
Pitch (mm)
5
Belt Width (mm)
25
Bore Type
Pilot Bore
Pitch Diameter (mm)
114.59
Outside Diameter (mm)
113.45
Face Width (mm)
32
Min Bore (mm)
8
Max Bore (mm)
60
Weight
0.53kg
Dimensions (L × W × H)
11.3 × 11.3 × 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 | HTDPB725M25 | Aroflex part number |
| Number of Teeth | 72 | |
| Pitch (mm) | 5 | |
| Belt Width (mm) | 25 | |
| Bore Type | Pilot Bore | |
| Pitch Diameter (mm) | 114.59 | |
| Outside Diameter (mm) | 113.45 | |
| Face Width (mm) | 32 | |
| Min Bore (mm) | 8 | |
| Max Bore (mm) | 60 | |
| Weight | 0.53 kg | |
| Dimensions | 11.3 × 11.3 × 3 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Certification | ISO 9001:2015 | Quality assured |
72-5M-25 HTD Pilot Bore Timing Pulley
The large reduction-scale 72-5M-25 HTD Timing Pulley delivers high mechanical reductions and stable synchronous distribution. Spreading rotational forces across 25mm wide belts via an accurate 5mm 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: 5mm industrial pitch profile designed for standard 25mm wide timing belts.
- Bore Status: Unfinished Pilot Bore center layout to facilitate specialized post-purchase reaming.
- Industrial Materials: Constructed from rigid, premium Cast Iron (GG), Steel (St), or high-grade Aluminum UNI 9006 – T6 (Al).
- 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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