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Workshop Add Bore & Keyway Service

+ £0.00 (£0.00 each)

Order total (product + machining): £27.49

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: HTDTL408M50 HTD Timing Belt Pulleys

40-8M-50 HTD PULLEY TL 2012

Name: 40-8M-50 HTD Pulley TL 2012 | UK Stock | Arrow Engineering
SKU: HTDTL408M50
Price: 27.49 GBP
Availability: InStock

£27.49

ex. VAT · £32.99 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)

101.86

Outside Diameter (mm)

100.49

Face Width (mm)

Min Bore (mm)

Max Bore (mm)

Weight

3.5kg

Dimensions (L × W × H)

10 × 10 × 6 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	HTDTL408M50	Aroflex part number
Number of Teeth	40
Pitch (mm)	8
Belt Width (mm)	50
Taper Lock Bushing	2012
Pitch Diameter (mm)	101.86
Outside Diameter (mm)	100.49
Face Width (mm)	60
Min Bore (mm)	14
Max Bore (mm)	50
Weight	3.5 kg
Dimensions	10 × 10 × 6 cm	Overall envelope
Bore Tolerance	H7	Precision transition fit
Certification	ISO 9001:2015	Quality assured

40-8M-50 HTD Timing Pulley c/w TL 2012 Taper Lock Bush Bore

The 40-8M-50 HTD Timing Pulley is upgraded to a larger hub size to handle higher torque thresholds and thicker shafts. Designed with 40 curvilinear teeth at an 8mm pitch, it interfaces smoothly with 50mm wide synchronous timing belts. This unit features a taper bore configured for a standard TL 2012 Taper Lock bush system.

Product Features & Specifications

Tooth Configuration: 40 precision-machined HTD teeth.
Pitch & Belt Width: 8mm pitch designed for 50mm timing belts.
Shaft Mounting System: Upgraded to accept standard TL 2012 Taper Lock interlocking bushes.
Industrial Build Quality: Built with heavy-duty Steel (St) or premium 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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      EXCELLENT  
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 18 February 2025
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful, friendly staff.
  
 
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 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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 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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 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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 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