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Workshop Add Bore & Keyway Service

+ £0.00 (£0.00 each)

Order total (product + machining): £35.20

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: HTDPB2814M40 HTD Timing Belt Pulleys

28-14M-40 HTD PULLEY PILOT BORE

Name: 28-14M-40 HTD Pulley PILOT BORE | UK Stock | Arrow Engineering
SKU: HTDPB2814M40
Price: 35.20 GBP
Availability: InStock

£35.20

ex. VAT · £42.24 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)

Bore Type

Pilot Bore (Pre-bored)

Pitch Diameter (mm)

124.78

Outside Diameter (mm)

121.99

Face Width (mm)

Stock Pilot Bore (mm)

Max Re-Bore Diameter (mm)

Weight

2.4kg

Dimensions (L × W × H)

12.2 × 12.2 × 5.4 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	HTDPB2814M40	Aroflex part number
Number of Teeth	28
Pitch (mm)	14
Belt Width (mm)	40
Bore Type	Pilot Bore (Pre-bored)
Pitch Diameter (mm)	124.78
Outside Diameter (mm)	121.99
Face Width (mm)	54
Stock Pilot Bore (mm)	24
Max Re-Bore Diameter (mm)	75
Weight	2.4 kg
Dimensions	12.2 × 12.2 × 5.4 cm	Overall envelope
Bore Tolerance	H7	Precision transition fit
Certification	ISO 9001:2015	Quality assured

28-14M-40 HTD Timing Pulley [Pilot Bore Variant]

The compact, heavy-duty 28-14M-40 HTD Timing Pulley is engineered to handle intensive torque demands inside narrow installation footprints. Featuring a massive 14mm curvilinear pitch tooth profile, it provides deep belt engagement to stop tooth jump or ratcheting during extreme shock spikes alongside 40mm wide synchronous timing belts. Provided with a plain stock pilot bore, it is ideal for custom boring and precision keyway cutting.

Product Features & Specifications

Tooth Configuration: 28 heavy-duty industrial precision-machined teeth.
Pitch & Belt Width: 14mm large pitch profile designed for 40mm wide timing belts.
Bore Status: Unmachined Pilot Bore center hub layout, letting you drill to unique millimetric constraints.
Industrial Build Quality: Precision-machined from high-tensile solid Steel (St) or Cast Iron (GG) to ensure extreme durability.
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  
   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