SKF Duplex Sprocket with Hub 1 / 2" × 5 / 16" for 08B-2 Chains

[Specifications]
・Sprocket Shape: Shape B
・Number of Teeth(T): 17, 21, 25
・Max. Shaft Bore Dia. dmax (mm) : 30, 40, 50
・Min. Shaft Bore Dia. dmin (mm) : 14, 16
・Norm: DIN 8187/ISO 606, European type

[Features]
・Duplex sprocket with single hub and rough stock bore, European standards (EN)
・Sprockets are available in many sizes, to fit a variety of design solutions
・These duplex sprockets have a rough stock bore and hub profile on one side of the sprocket to connect to the shaft
・With a comprehensive range, you can easily find the correct sprocket size for your application
・As standard, all sprockets are made from high-quality steels and have a black oxide coating, and sizes up to and including 25 tooth have hardened teeth
・Manufactured according to international global standards
・Made from high-grade steel and carbon steel

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Part Number
PHS 08B-2BH17
PHS 08B-2BH21
PHS 08B-2BH25

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	Number of Teeth (T)	Max. Shaft Bore Dia. dmax (mm)	Min. Shaft Bore Dia. dmin (mm)	Customs tariff — weight (kg)	Hub diameter H (mm)	Total width L (mm)	Pitch circle diameter (mm)
20.05 €	1	5 Days	17	30	14	0.673	54	35	69.11
27.12 €	1	5 Days	21	40	16	1.249	70	40	85.22
36.26 €	1	5 Days	25	50	16	1.768	80	40	101.33

Basic information

Number of Tracks	2	Material	Steel	Design	European
Customs tariff — weight per	1	Tooth width(mm)	7.24	Customs tariff — weight unit	kg
Customs tariff — item number	84839089	Norm	DIN 8187/ISO 606, European type	Internal width (inch) b1(inch)	5/16
Inner width b1(mm)	7.75	Hardened teeth (yes / no)	Yes	Pitch (inch) p(inch)	1/2
Type	08B-2	Customs tariff — country of origin	DE	Pitch p(mm)	12.7
Hub (yes / no)	Yes	Total width across all teeth(mm)	21.13