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Workshop Add Bore & Keyway Service

+ £0.00 (£0.00 each)

Order total (product + machining): £180.43

Price varies by bore size and Bore Qty (per machined hub).

Bore size (Hub 1)

Bore size (Hub 2)

Bore Qty (machined items)

Max equals product quantity.

Please Confirm any Additional Machining Details Required (optional)

Keyway size (optional)

Price Breakdown

Up to 25mm (0.984") – (£15)
Up to 40mm (1.575") – (£20)
Up to 60mm (2.362") – (£30)
Over 60mm (2.362"+) – (£45)

Quantity Discount Breakdown

1 to 5 items: No discount
6 to 9 items: 10% off
10 to 19 items: 15% off
20 to 49 items: 20% off
50 to 99 items: 25% off
100+ items: 30% off

SKU: HTDTL1128M85 HTD Timing Belt Pulleys

112-8M-85 HTD PULLEY TL 3020

Name: 112-8M-85 HTD Pulley TL 3020 | UK Stock | Arrow Engineering
SKU: HTDTL1128M85
Price: 180.43 GBP
Availability: InStock

£180.43

ex. VAT · £216.52 inc. VAT

JS9 Tight Fit Anti-Roll H7 Precision Transition Fit ISO 9001 Quality Assured

In Stock — Dispatches within 24 hours. Bulk orders (10+) available — call for lead time.

Technical Specifications

Number of Teeth

112

Pitch (mm)

Belt Width (mm)

Taper Lock Bushing

3020

Pitch Diameter (mm)

285.21

Outside Diameter (mm)

283.84

Face Width (mm)

Min Bore (mm)

Max Bore (mm)

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

Precision Transition Fit Precision bore fit

ISO

ISO 9001:2015 Quality Assured

Parameter	Value	Notes
SKU	HTDTL1128M85	Aroflex part number
Number of Teeth	112
Pitch (mm)	8
Belt Width (mm)	85
Taper Lock Bushing	3020
Pitch Diameter (mm)	285.21
Outside Diameter (mm)	283.84
Face Width (mm)	95
Min Bore (mm)	22
Max Bore (mm)	75
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 c/w TL 3020 Taper Lock Bush Bore

The large-format 112-8M-85 HTD Timing Pulley is engineered to deliver stable speed reduction and exceptional power distribution in massive powertrain systems. Its 112 teeth offer deep contact tracking across extra-wide 85mm timing belts, eliminating drive slippage. The central hub is precision-bored to fit standard TL 3020 Taper Lock interlocking bushes.

Product Features & Specifications

Tooth Configuration: 112 precision-machined HTD teeth.
Pitch & Belt Width: 8mm pitch dimensioned for 85mm wide timing belts.
Shaft Mounting System: Designed for standard TL 3020 Taper Lock interlocking bushes.
Industrial Build Quality: Fabricated using premium-grade 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.

112-8M-85 HTD Pulley Dimensional Diagram

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      EXCELLENT  
   Based on 15 reviews 
    
 
 
 
   
 
 
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   H Cunningham 
 18 February 2025
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful, friendly staff.
  
 
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   P Wâtëŕs 
 16 August 2023
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service and customer support.  Professional staff. And really informative.
  
 
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   T hall 
 29 November 2021
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful company....above 5 star rated.
  
 
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   B Kennedy 
 16 November 2020
 
 
 Trustindex verifies that the original source of the review is Google. Very very helpful a pleasure to deal with you
  
 
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   D Birch 
 25 October 2020
 
 
 Trustindex verifies that the original source of the review is Google. Everytime ive been here they have had what i needed, and good prices, so all good with me