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SKU: HTBPB348M85
HTD Timing Belt Pulleys
34-8M-85 HTD PULLEY PILOT BORE
£37.40
ex. VAT · £44.88 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
34
Pitch (mm)
8
Belt Width (mm)
85
Bore Type
Pilot Bore
Pitch Diameter (mm)
86.58
Outside Diameter (mm)
85.21
Face Width (mm)
93
Min Bore (mm)
15
Max Bore (mm)
60
Weight
1.85kg
Dimensions (L × W × H)
8.5 × 8.5 × 9.5 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 | HTBPB348M85 | Aroflex part number |
| Number of Teeth | 34 | |
| Pitch (mm) | 8 | |
| Belt Width (mm) | 85 | |
| Bore Type | Pilot Bore | |
| Pitch Diameter (mm) | 86.58 | |
| Outside Diameter (mm) | 85.21 | |
| Face Width (mm) | 93 | |
| Min Bore (mm) | 15 | |
| Max Bore (mm) | 60 | |
| Weight | 1.85 kg | |
| Dimensions | 8.5 × 8.5 × 9.5 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Certification | ISO 9001:2015 | Quality assured |
34-8M-85 HTD Pilot Bore Timing Pulley
The intermediate 34-8M-85 HTD Timing Pulley features a robust size profile built to handle increased torque thresholds. Designed with 34 heavy curvilinear teeth at an 8mm pitch, it interfaces smoothly with 85mm wide synchronous timing belts to minimize component fatigue. The unfinished plain pilot bore center layout provides complete machine-shop freedom to meet customized shaft parameters.
Product Features & Specifications
- Tooth Configuration: 34 precision-machined heavy-duty teeth.
- Pitch & Belt Width: 8mm industrial pitch dimensioned specifically for 85mm wide timing belts.
- Bore Status: Unfinished Pilot Bore center layout to facilitate specialized post-purchase reaming.
- Industrial Build Quality: Built with heavy-duty Steel (St) or premium Cast Iron (GG).
- 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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