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Select all	Attribute	Value
	Brand	SKF
	Product Type	Sprocket
	Number of Teeth	40
	Bore Type	Taper Bush
	Pitch Diameter	161.87mm
	Material	Steel
	Hub Diameter	90mm
	Sprocket Width	32mm
	Acceptable Chain Type	08 B-1
	Maximum Inside Diameter	50.8mm
	Standards/Approvals	BS, EN

	Select all
	Brand SKF
	Product Type Sprocket
	Number of Teeth 40
	Bore Type Taper Bush
	Pitch Diameter 161.87mm
	Material Steel
	Hub Diameter 90mm
	Sprocket Width 32mm
	Acceptable Chain Type 08 B-1
	Maximum Inside Diameter 50.8mm
	Standards/Approvals BS, EN

Datasheet - PHS 08B-1TB40

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COO (Country of Origin):: CN

SKF Sprocket, 40 Teeth, 50.8mm Bore Size - PHS 08B-1TB40

This sprocket is a steel transmission wheel designed to drive 08 B-1 roller chain in industrial power-transmission assemblies. It provides torque transfer between shafts where a taper-mounted hub and precision tooth form are required, and is suitable for continued operation in mechanical and automation equipment that relies on standardised chain engagement.

Features and Benefits:

• Taper bush bore enables secure, removable hub mounting • 40 teeth deliver consistent chain engagement for steady speed ratios • 161.87mm pitch diameter ensures accurate centre-distance geometry • 32mm width supports stable chain tracking under load • 90mm hub diameter offers robust support for mounted shafts • Manufactured to BS and EN criteria for standardised interchangeability

Applications

• Suitable for conveyor drives in manufacturing automation • Ideal for sprocket-and-chain speed reduction in mechanical systems • Used with power transmission setups in electrical motor coupling • Can be used for replacement drives in industrial electronics enclosures • Suitable for retrofitting 08 B-1 chain installations requiring taper mounting

What mounting method secures the component to a shaft?

It uses a taper bush arrangement that clamps the bore to the shaft for concentric, removable attachment.

How does the tooth count affect mechanical performance?

The 40-tooth configuration alters gear ratio and reduces runaway acceleration compared with fewer-tooth alternatives, aiding smoother speed control.

Which chain standard is compatible with this wheel?

It is designed specifically for use with 08 B-1 roller chain profiles to ensure correct meshing and load distribution.

What material considerations affect longevity in industrial settings?

Constructed from steel, it offers wear resistance and dimensional stability for sustained engagement in power-transmission environments.

SKF 40 Tooth Taper Bush Sprocket, PHS 08B-1TB40 08 B-1

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