Pilot Bore Sprockets – 3/4” Pitch Roller Chain Sprockets

Here at Bolton Engineering Products Ltd we stock a full range of pilot bore sprockets, for dependable effective power transmission in industrial conveyor and mechanical drive applications.

by the plastic roller sleeves which reduce noise and protection from other accidental damage, our 3/4 pitch industry standard roller chain sprockets are built to British Standard as is a sign of quality you can trust.

If you’re in need of one off pilot bore or volume quantities for OEM accounts, BEP Ltd provides excellent value and precision manufactured components.

What Is a Pilot Bore Sprocket?

A pilot bore sprocket (also known as a rough stock bore sprocket) is supplied with an oversized or unfinished bore, allowing the user to machine it to the exact shaft size required.

This makes it a versatile solution for engineers needing:
Custom bore sizes
Keyways or set screw modifications
Fitment to bushings, hubs, or custom shafts

Pilot bore sprockets are widely used in:

Manufacturing machinery
Agricultural equipment
Material handling and conveyors
Bicycles, motorcycles, and chain-driven vehicles

Technical Specifications

Specification	Details
Product Type	Pilot Bore Sprocket (Rough Stock Bore)
Chain Pitch	3/4” Pitch Roller Chain (BS Standard)
Tooth Options	10 – 50+ Teeth Available
Material	Steel / Hardened Steel
Bore Type	Pilot Bore (Machinable to Customer Specification)
Mounting Options	Direct Shaft Mount / Hub / Bushing
Tooth Profile	British Standard (BS Sprockets)
Applications	Industrial Drives, Machinery, Conveyors, Agricultural
Finish	Phosphate, Black Oxide, or Untreated (Depending Model)

Key Features & Benefits

Machinable Bore: Machine the bore to your precise specifications.
BS-Standard Compatibility: Suitable for BS roller chain, perfect matching.
Strong Material: Constructed of sturdy and durable steel material for long use life.
Various Sizes - everything from small sprockets to heavy-duty models for big chain drives.
Quick UK Delivery: We have lots of stock and we dispatch the same working day.

Why Choose Bolton Engineering Products Ltd?

As a trusted UK supplier of pilot bore sprockets, BEP Ltd offers:

Extensive stock of BS sprockets for 3/4 pitch roller chains
Competitive pricing with bulk-order discounts
High-quality sprockets sourced from reliable manufacturers
Expert support to help you choose the right sprocket for your application
Easy online ordering and fast nationwide delivery

Whether you’re replacing worn components or building a new chain-drive system, we ensure you get the right pilot bore sprocket every time.

FAQs

Q1: What is a pilot bore sprocket used for?

It allows the user to customize the bore and keyway for specific shaft or hub sizes, making it highly versatile in machinery and chain drive systems.

Q2: Are these sprockets compatible with BS roller chains?

Yes. Our sprockets are manufactured to BS standards, suitable for 3/4 pitch roller chains.

Q3: Can I request machining for the bore or keyway?

Yes. We can supply pilot bore sprockets as-is or can assist with machining recommendations.

Q4: Do you offer large quantities for OEM or industrial use?

Absolutely. Bulk purchasing options and trade pricing are available.

Roller Chain Pilot Bore Sprockets - 3/4

Pilot Bore Sprockets – 3/4” Pitch Roller Chain Sprockets

Here at Bolton Engineering Products Ltd we stock a full range of pilot bore sprockets, for dependable effective power transmission in industrial conveyor and mechanical drive applications.

If you’re in need of one off pilot bore or volume quantities for OEM accounts, BEP Ltd provides excellent value and precision manufactured components.

What Is a Pilot Bore Sprocket?

A pilot bore sprocket (also known as a rough stock bore sprocket) is supplied with an oversized or unfinished bore, allowing the user to machine it to the exact shaft size required.

This makes it a versatile solution for engineers needing:
Custom bore sizes
Keyways or set screw modifications
Fitment to bushings, hubs, or custom shafts

Pilot bore sprockets are widely used in:

Manufacturing machinery
Agricultural equipment
Material handling and conveyors
Bicycles, motorcycles, and chain-driven vehicles

Technical Specifications

Specification	Details
Product Type	Pilot Bore Sprocket (Rough Stock Bore)
Chain Pitch	3/4” Pitch Roller Chain (BS Standard)
Tooth Options	10 – 50+ Teeth Available
Material	Steel / Hardened Steel
Bore Type	Pilot Bore (Machinable to Customer Specification)
Mounting Options	Direct Shaft Mount / Hub / Bushing
Tooth Profile	British Standard (BS Sprockets)
Applications	Industrial Drives, Machinery, Conveyors, Agricultural
Finish	Phosphate, Black Oxide, or Untreated (Depending Model)

Key Features & Benefits

Machinable Bore: Machine the bore to your precise specifications.
BS-Standard Compatibility: Suitable for BS roller chain, perfect matching.
Strong Material: Constructed of sturdy and durable steel material for long use life.
Various Sizes - everything from small sprockets to heavy-duty models for big chain drives.
Quick UK Delivery: We have lots of stock and we dispatch the same working day.

Why Choose Bolton Engineering Products Ltd?

As a trusted UK supplier of pilot bore sprockets, BEP Ltd offers:

Extensive stock of BS sprockets for 3/4 pitch roller chains
Competitive pricing with bulk-order discounts
High-quality sprockets sourced from reliable manufacturers
Expert support to help you choose the right sprocket for your application
Easy online ordering and fast nationwide delivery

Whether you’re replacing worn components or building a new chain-drive system, we ensure you get the right pilot bore sprocket every time.

FAQs

Q1: What is a pilot bore sprocket used for?

It allows the user to customize the bore and keyway for specific shaft or hub sizes, making it highly versatile in machinery and chain drive systems.

Q2: Are these sprockets compatible with BS roller chains?

Yes. Our sprockets are manufactured to BS standards, suitable for 3/4 pitch roller chains.

Q3: Can I request machining for the bore or keyway?

Yes. We can supply pilot bore sprockets as-is or can assist with machining recommendations.

Q4: Do you offer large quantities for OEM or industrial use?

Absolutely. Bulk purchasing options and trade pricing are available.

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6SR19 30mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 19 Tooth

£28.12 - £28.12

£28.12

£28.12 - £28.12

£28.12

Roller Chain Sprocket 12B 6SR19 30mm Bore Key & 2 Set Screws 3/4" Pitch 19 ToothChain Pitch:12B-1Number of Teeth:19Bore & Keyway(mm):30mmMf...

View full details

£28.12 - £28.12

£28.12

£28.12 - £28.12

£28.12

6SR19 28mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 19 Tooth

£28.12 - £28.12

£28.12

£28.12 - £28.12

£28.12

Roller Chain Sprocket 12B 6SR19 28mm Bore Key & 2 Set Screws 3/4" Pitch 19 ToothChain Pitch:12B-1Number of Teeth:19Bore & Keyway(mm):28mmMf...

View full details

£28.12 - £28.12

£28.12

£28.12 - £28.12

£28.12

6SR19 25mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 19 Tooth

£28.12 - £28.12

£28.12

£28.12 - £28.12

£28.12

Roller Chain Sprocket 12B 6SR19 25mm Bore Key & 2 Set Screws 3/4" Pitch 19 ToothChain Pitch:12B-1Number of Teeth:19Bore & Keyway(mm):25mmMf...

View full details

£28.12 - £28.12

£28.12

£28.12 - £28.12

£28.12

6SR18 40mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 40mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):40mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR18 38mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 38mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):38mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR18 35mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 35mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):35mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR18 32mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 32mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):32mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR18 30mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 30mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):30mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR18 28mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 28mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):28mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR18 25mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 18 Tooth

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

Roller Chain Sprocket 12B 6SR18 25mm Bore Key & 2 Set Screws 3/4" Pitch 18 ToothChain Pitch:12B-1Number of Teeth:18Bore & Keyway(mm):25mmMf...

View full details

£26.36 - £26.36

£26.36

£26.36 - £26.36

£26.36

6SR17 40mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 40mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):40mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR17 38mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 38mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):38mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR17 35mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 35mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):35mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR17 32mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 32mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):32mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR17 30mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 30mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):30mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR17 28mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 28mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):28mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR17 25mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 17 Tooth

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

Roller Chain Sprocket 12B 6SR17 25mm Bore Key & 2 Set Screws 3/4" Pitch 17 ToothChain Pitch:12B-1Number of Teeth:17Bore & Keyway(mm):25mmMf...

View full details

£25.24 - £25.24

£25.24

£25.24 - £25.24

£25.24

6SR16 40mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 40mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):40mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

6SR16 38mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 38mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):38mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

6SR16 35mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 35mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):35mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

6SR16 32mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 32mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):32mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

6SR16 28mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 28mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):28mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

6SR16 25mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 25mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):25mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

6SR16 22mm Bore, Keyway & Grub Screws Roller Chain Sprocket 3/4" Pitch 16 Tooth

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

Roller Chain Sprocket 12B 6SR16 22mm Bore Key & 2 Set Screws 3/4" Pitch 16 ToothChain Pitch:12B-1Number of Teeth:16Bore & Keyway(mm):22mmMf...

View full details

£23.32 - £23.32

£23.32

£23.32 - £23.32

£23.32

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Pilot Bore Sprockets – 3/4” Pitch Roller Chain Sprockets

What Is a Pilot Bore Sprocket?

Pilot bore sprockets are widely used in:

Technical Specifications

Key Features & Benefits

Why Choose Bolton Engineering Products Ltd?

FAQs

Q1: What is a pilot bore sprocket used for?

Q2: Are these sprockets compatible with BS roller chains?

Q3: Can I request machining for the bore or keyway?

Q4: Do you offer large quantities for OEM or industrial use?

Roller Chain Pilot Bore Sprockets - 3/4

Pilot Bore Sprockets – 3/4” Pitch Roller Chain Sprockets

What Is a Pilot Bore Sprocket?

Pilot bore sprockets are widely used in:

Technical Specifications

Key Features & Benefits

Why Choose Bolton Engineering Products Ltd?

FAQs

Q1: What is a pilot bore sprocket used for?

Q2: Are these sprockets compatible with BS roller chains?

Q3: Can I request machining for the bore or keyway?

Q4: Do you offer large quantities for OEM or industrial use?