You searched for "parallel bore"
SKF
SKF 17 Tooth Rough Stock Bore Sprocket, PHS 10B-2BH17 16B-2 Chain Type
Part: PHS 10B-2BH17
SKF sprocket with 17 teeth for mechanical power transmission and chain drive systems.
SKF
SKF 17 Tooth Rough Stock Bore Sprocket, PHS 10B-1BH17 12B-2 Chain Type
Part: PHS 10B-1BH17
SKF sprocket with 17 teeth for 12B-2 roller chain power transmission systems.
SKF
SKF 17 Tooth Taper Bush Sprocket, PHS 10B-1TBH17 12B-2 Chain Type
Part: PHS 10B-1TBH17
SKF 17-tooth taper bush sprocket for 12B-2 chain machinery.