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Workshop Add Bore & Keyway Service

+ £0.00 (£0.00 each)

Order total (product + machining): £9.13

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: HTDTL288M20 HTD Timing Belt Pulleys

28-8M-20 HTD PULLEY TL 1108

Name: 28-8M-20 HTD Pulley TL 1108 | UK Stock | Arrow Engineering
SKU: HTDTL288M20
Price: 9.13 GBP
Availability: InStock

£9.13

ex. VAT · £10.96 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

1108

Pitch Diameter (mm)

71.3

Outside Diameter (mm)

69.93

Face Width (mm)

Min Bore (mm)

Max Bore (mm)

Weight

0.6kg

Dimensions (L × W × H)

7 × 7 × 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	HTDTL288M20	Aroflex part number
Number of Teeth	28
Pitch (mm)	8
Belt Width (mm)	20
Taper Lock Bushing	1108
Pitch Diameter (mm)	71.3
Outside Diameter (mm)	69.93
Face Width (mm)	28
Min Bore (mm)	11
Max Bore (mm)	28
Weight	0.6 kg
Dimensions	7 × 7 × 2.8 cm	Overall envelope
Bore Tolerance	H7	Precision transition fit
Certification	ISO 9001:2015	Quality assured

28-8M-20 HTD Timing Pulley c/w TL 1108 Taper Lock Bush Bore

The 28-8M-20 HTD Timing Pulley ensures positive drive synchronization with zero slip under harsh load variations. Spreading mechanical friction across 20mm wide belts via an 8mm pitch configuration, its flanged geometry maintains flawless alignment on demanding drivetrain integrations. It features a center hub pre-machined to mount using a standard TL 1108 Taper Lock bush.

Product Features & Specifications

Tooth Configuration: 28 precision-machined HTD teeth.
Pitch & Belt Width: 8mm pitch geometry optimized for standard 20mm wide timing belts.
Shaft Mounting System: Fits standard TL 1108 Taper Lock interlocking bushes.
Industrial Build Quality: Built with high-strength solid Steel (St) or 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