SKF 20 Tooth Rough Stock Bore Sprocket, PHS 12B-2BH20 12 B-2

RS Stock No.:: 267-8927
Mfr. Part No.:: PHS 12B-2BH20
Manufacturer:: SKF

SKF 20 Tooth Rough Stock Bore Sprocket, PHS 12B-2BH20 12 B-2

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HK$374.80

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Ready to ship from 26 October 2026

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1 +	HK$374.80

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RS Stock No.:: 267-8927
Mfr. Part No.:: PHS 12B-2BH20
Manufacturer:: SKF

Specifications

Product overview and Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	SKF
	Bore Diameter	64mm
	Product Type	Sprocket
	Number of Teeth	20
	Bore Type	Rough Stock Bore
	Pitch Diameter	121.78mm
	Hub Diameter	100mm
	Material	Steel
	Sprocket Width	50mm
	Acceptable Chain Type	12 B-2
	Maximum Inside Diameter	64mm
	Standards/Approvals	EN, BS

	Select all
	Brand SKF
	Bore Diameter 64mm
	Product Type Sprocket
	Number of Teeth 20
	Bore Type Rough Stock Bore
	Pitch Diameter 121.78mm
	Hub Diameter 100mm
	Material Steel
	Sprocket Width 50mm
	Acceptable Chain Type 12 B-2
	Maximum Inside Diameter 64mm
	Standards/Approvals EN, BS

Datasheet - PHS 12B-2BH20

COO (Country of Origin):: CN

SKF Sprocket, 20 Teeth, 50mm Sprocket Width - PHS 12B-2BH20

This sprocket is a steel drive wheel designed to transmit rotary motion via a compatible roller chain in industrial assemblies. It is supplied with a rough stock bore to allow final machining to match a shaft, and meets recognised EN and BS standards for dimensioning and material conformity.

Features and Benefits:

• Steel construction provides high wear resistance and longevity
• Twenty teeth enable precise engagement with chain links
• Compatible with 12B-2 chain for reliable power transmission
• Fifty mm width supports lateral load distribution
• Maximum inside diameter 64 mm permits clearance for hub machining

Applications

• Suitable for conveyor drive systems in factories
• Used with agricultural machinery requiring chain drive
• Ideal for retrofitting worn chain sprockets in plants
• Can be used for power transmission in material handling
• Used for bespoke drive assemblies needing bore finishing

What bore preparation is required before assembly?

The rough stock bore requires finishing to the final shaft diameter and keyway cutting to ensure correct fit and torque transmission.

What should be considered when matching chain type?

Select 12B-2 chain matching the sprocket tooth profile and pitch diameter to maintain proper engagement and minimise wear.

How does hub diameter affect installation?

The 100 mm hub diameter determines mounting envelope and provides material for machining features such as setscrew bores or taper fits.

Which metric determines the sprocket’s rolling contact with the chain?

The pitch diameter of 121.78 mm governs the centre distance and sprocket-to-sprocket spacing for correct chain geometry.