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Sélectionner tout	Attribut	Valeur
	Marque	SKF
	Product Type	Sprocket
	Number of Teeth	21
	Bore Type	Taper Bush
	Pitch Diameter	85.22mm
	Hub Diameter	70mm
	Material	Steel
	Sprocket Width	25mm
	Acceptable Chain Type	08 B-2
	Maximum Inside Diameter	41.3mm
	Standards/Approvals	BS

	Sélectionner tout
	Marque SKF
	Product Type Sprocket
	Number of Teeth 21
	Bore Type Taper Bush
	Pitch Diameter 85.22mm
	Hub Diameter 70mm
	Material Steel
	Sprocket Width 25mm
	Acceptable Chain Type 08 B-2
	Maximum Inside Diameter 41.3mm
	Standards/Approvals BS

Datasheet - PHS 08B-2TBH21

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Pays d'origine :: CN

SKF Sprocket, 21 Teeth, 25mm Width - PHS 08B-2TBH21

This sprocket is a toothed transmission component designed for use with 08 B-2 roller chain in industrial power-transmission systems. It provides reliable rotary drive engagement for conveyor, indexing and drive applications where standardised interfacing and straightforward mounting are required.

Features and Benefits:

• Hardened steel construction provides wear resistance and longevity
• Taper bush Interface allows precise hub-to-shaft alignment
• Accommodates variable bore sizing for flexible shaft fits
• 21-tooth profile ensures consistent chain engagement and smooth drive
• BS standard conformity supports interchangeability in installations
• 25mm face width improves load distribution across chain links

Applications

• Suitable for conveyor drives using 08 B-2 chain
• Ideal for indexing mechanisms in automation equipment
• Used with gearbox outputs requiring a taper bush mounting
• Can be used for drive assemblies in electrical panel handling systems
• Suitable for retrofitting sprockets in mechanical production lines

How is the sprocket mounted to different shaft diameters?

It uses a tapered bush system that permits secure clamping to shafts within the bush’s bore range, allowing a tight interference fit without additional machining.

What material properties affect service life under cyclic loading?

The steel construction provides high fatigue strength and resistance to repeated contact stresses from roller chain engagement.

How does the sprocket Interface with the chosen chain type?

The tooth form and pitch match the 08 B-2 chain pitch, ensuring accurate tooth-to-link engagement and reduced slippage during operation.

What measures support accurate positioning on the drive shaft?

The taper bush allows axial adjustment and concentric tightening to achieve accurate radial runout and repeatable positioning.

SKF 21 Tooth Taper Bush Sprocket, PHS 08B-2TBH21 08 B-2

Frais de livraison offerts pour toute commande de plus de 90,00 €