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Workshop Add Bore & Keyway Service

+ £0.00 (£0.00 each)

Order total (product + machining): £50.22

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: HTDTL728M20 HTD Timing Belt Pulleys

72-8M-20 HTD PULLEY TL 2012

Name: 72-8M-20 HTD Pulley TL 2012 | UK Stock | Arrow Engineering
SKU: HTDTL728M20
Price: 50.22 GBP
Availability: InStock

£50.22

ex. VAT · £60.26 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

Pitch (mm)

Belt Width (mm)

Taper Lock Bushing

2012

Pitch Diameter (mm)

183.35

Outside Diameter (mm)

181.98

Face Width (mm)

Min Bore (mm)

Max Bore (mm)

Weight

3.5kg

Dimensions (L × W × H)

18.2 × 18.2 × 2.8 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	HTDTL728M20	Aroflex part number
Number of Teeth	72
Pitch (mm)	8
Belt Width (mm)	20
Taper Lock Bushing	2012
Pitch Diameter (mm)	183.35
Outside Diameter (mm)	181.98
Face Width (mm)	28
Min Bore (mm)	14
Max Bore (mm)	50
Weight	3.5 kg
Dimensions	18.2 × 18.2 × 2.8 cm	Overall envelope
Bore Tolerance	H7	Precision transition fit
Certification	ISO 9001:2015	Quality assured

72-8M-20 HTD Timing Pulley c/w TL 2012 Taper Lock Bush Bore

The large-format 72-8M-20 HTD Timing Pulley delivers high mechanical reduction ratios and stable synchronous distribution. Designed to drive 20mm wide timing belts across its 72 deep curvilinear teeth, it minimizes friction and optimizes load transfer across heavy gear setups. It features an integrated taper bore optimized to take standard TL 2012 Taper Lock bushes.

Product Features & Specifications

Tooth Configuration: 72 heavy-duty synchronous HTD teeth.
Pitch & Belt Width: 8mm heavy industrial pitch designed for 20mm wide timing belts.
Shaft Mounting System: Designed to mount with standard TL 2012 Taper Lock interlocking bushes.
Industrial Build Quality: Built with premium Steel (St) or high-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.

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 18 February 2025
 
 
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 16 August 2023
 
 
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 29 November 2021
 
 
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 16 November 2020
 
 
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 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