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SKU: HTDPB908M85
HTD Timing Belt Pulleys
90-8M-85 HTD PULLEY PILOT BORE
£107.80
ex. VAT · £129.36 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
90
Pitch (mm)
8
Belt Width (mm)
85
Bore Type
Pilot Bore (Pre-bored)
Pitch Diameter (mm)
229.18
Outside Diameter (mm)
227.81
Face Width (mm)
95
Stock Pilot Bore (mm)
15
Max Re-Bore Diameter (mm)
80
Weight
11.5kg
Dimensions (L × W × H)
22.8 × 22.8 × 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 | HTDPB908M85 | Aroflex part number |
| Number of Teeth | 90 | |
| Pitch (mm) | 8 | |
| Belt Width (mm) | 85 | |
| Bore Type | Pilot Bore (Pre-bored) | |
| Pitch Diameter (mm) | 229.18 | |
| Outside Diameter (mm) | 227.81 | |
| Face Width (mm) | 95 | |
| Stock Pilot Bore (mm) | 15 | |
| Max Re-Bore Diameter (mm) | 80 | |
| Weight | 11.5 kg | |
| Dimensions | 22.8 × 22.8 × 9.5 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Certification | ISO 9001:2015 | Quality assured |
90-8M-85 HTD Timing Pulley [Pilot Bore Variant]
The 90-8M-85 HTD Timing Pulley ensures smooth rotational reductions and stable power distribution within heavy industrial gear sets. Spreading mechanical friction evenly across 85mm wide timing belts, its 90 deep curvilinear teeth minimize premature drive failure under heavy shock conditions. It features an integrated plain pilot bore layout ready for customized machine shop alterations.
Product Features & Specifications
- Tooth Configuration: 90 precision-machined synchronous HTD teeth.
- Pitch & Belt Width: 8mm high-torque drive profile engineered for 85mm wide timing belts.
- Bore Status: Unbored stock hub with a small pilot hole to facilitate clean lathe centering.
- Industrial Build Quality: Fabricated using robust Cast Iron (GG) or 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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