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This 120BS21 sprocket features a 1" finished bore with a key-way and two set screws
Our SB206-20 insert bearing has several features: a wide inner-ring
Something to note about this 4018 coupling chain is that it fully meets all ANSI standards and will work with other manufactures sprockets and housings
Hub Diameter: 20mm
40SDS44 Sprocket (QD Type) 40B32 Sprockets This 120BS21 sprocket features aThis 40SDS44 sprocket is a durable, high quality, and precision sprocket that is manufactured to accept an SDS bushing. Something that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 roller chain and sprocket which prevents premature wear or breakage and, this means that it will directly interchange with most other manufactures sprockets. This sprocket is also black oxide coated
US$ 132.48
US$ 116.33
