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Select all	Attribute	Value
	Brand	SKF
	Product Type	Sprocket
	Number of Teeth	25
	Bore Diameter	50.8mm
	Bore Type	Taper Bush
	Pitch Diameter	101.33mm
	Material	Steel
	Hub Diameter	87mm
	Sprocket Width	32mm
	Acceptable Chain Type	08 B-2
	Maximum Inside Diameter	50.8mm
	Standards/Approvals	No

	Select all
	Brand SKF
	Product Type Sprocket
	Number of Teeth 25
	Bore Diameter 50.8mm
	Bore Type Taper Bush
	Pitch Diameter 101.33mm
	Material Steel
	Hub Diameter 87mm
	Sprocket Width 32mm
	Acceptable Chain Type 08 B-2
	Maximum Inside Diameter 50.8mm
	Standards/Approvals No

Datasheet - PHS 08B-2TBH25

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COO (Country of Origin):: CN

SKF Sprocket, 25 Teeth, 32mm Width - PHS 08B-2TBH25

This sprocket is a steel transmission wheel designed to transfer rotary motion in chain-driven systems where a taper bush mounting is required. It functions as a drive or driven sprocket compatible with 08B-2 roller chain and integrates with tapered bore hubs to secure the component on shafts in industrial conveyors and machinery.

Features and Benefits:

• 25 teeth deliver consistent engagement and torque transmission
• 32mm width supports stable chain seating and load distribution
• 101.33mm pitch diameter ensures accurate chain pitch alignment
• Taper bore allows precise, concentric mounting on shafts
• 87mm hub diameter provides robust axial support for loads
• Max inside diameter 50.8mm permits larger shaft accommodation

Applications

• Used with 08B-2 chain in light-to-medium conveyor drives
• Suitable for industrial machinery requiring taper bore mounting
• Ideal for rehabilitation of drive trains with 25T sprockets
• Can be used for replacement of worn steel drive wheels
• Used for retrofitting shaft assemblies with larger bores

What material composition affects wear resistance?

The component is manufactured from steel which provides the necessary hardness for contact with roller chain.

How does the hub Interface influence shaft support?

The hub diameter of 87mm increases bearing span and reduces bending loads on the shaft during operation.

What maximum shaft size can the bore accept?

The maximum internal opening permits shafts up to 50.8mm in diameter to be accommodated.

Which chain specification is compatible for reliable meshing?

It is designed to operate with 08B-2 roller chain to maintain correct pitch engagement.

How does the bore type affect installation precision?

The taper bush arrangement enables axial tightening for accurate centring and reduced runout when mounted.

SKF 25 Tooth Taper Bush Sprocket, PHS 08B-2TBH25 08 B-2

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