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SKU: HTDPB1128M85
HTD Timing Belt Pulleys
112-8M-85 HTD PULLEY PILOT BORE
£137.45
ex. VAT · £164.94 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Number of Teeth
112
Pitch (mm)
8
Belt Width (mm)
85
Bore Type
Pilot Bore (Pre-bored)
Pitch Diameter (mm)
285.21
Outside Diameter (mm)
283.84
Face Width (mm)
95
Stock Pilot Bore (mm)
20
Max Re-Bore Diameter (mm)
110
Weight
15kg
Dimensions (L × W × H)
28.4 × 28.4 × 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 | HTDPB1128M85 | Aroflex part number |
| Number of Teeth | 112 | |
| Pitch (mm) | 8 | |
| Belt Width (mm) | 85 | |
| Bore Type | Pilot Bore (Pre-bored) | |
| Pitch Diameter (mm) | 285.21 | |
| Outside Diameter (mm) | 283.84 | |
| Face Width (mm) | 95 | |
| Stock Pilot Bore (mm) | 20 | |
| Max Re-Bore Diameter (mm) | 110 | |
| Weight | 15 kg | |
| Dimensions | 28.4 × 28.4 × 9.5 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Certification | ISO 9001:2015 | Quality assured |
112-8M-85 HTD Timing Pulley [Pilot Bore Variant]
The large-scale 112-8M-85 HTD Timing Pulley is custom-engineered for extensive industrial reductions, offering smooth torque transmission for heavy plant equipment. Its wide 112-tooth curvilinear layout provides extensive contact tracking when driving an 85mm wide timing belt. The structural center hub arrives as a plain pilot bore to accommodate custom machining to non-standard shaft tolerances.
Product Features & Specifications
- Tooth Configuration: 112 precision-machined synchronous HTD teeth.
- Pitch & Belt Width: 8mm high-torque drive profile engineered for 85mm wide timing belts.
- Bore Status: Unfinished Pilot Bore center layout to facilitate specialized post-purchase reaming.
- Industrial Build Quality: Constructed from rigid, premium 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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