mpn
40BS57 1 1/8
brand
name: Martin Sprocket & Gear
manufacturer
name: Martin Sprocket & Gear
Attributes
Key
Value
Bore Type
Bored to Size
Caliper Diameter
8.761
Chain Number
40
Country of Origin (subj.
United States
Length through Bore (In.
1.125
Material
Steel
Number of Rows
1
Number of Teeth
57
Outside Dia. (In.)
9.363
Pitch Dia.
9.0764
Stocked Finished Bore
1.125
Storage Height
1.125
Storage Length
9.363
Storage Width
9.363
Surface Treatment
Protective Coating
Type
Standard Roller Chain
Weight
6.85