NEW MARTIN 50B22

The Martin 50B22 is a Type B hub, single-strand roller chain sprocket designed for use with ANSI #50 roller chain (5/8" pitch). It features 22 teeth, a stock bore diameter of 3/4" that is reboreable up to 2" maximum, and is manufactured from high carbon steel to meet or exceed ANSI standards. The B-hub design includes a hub extension on one side, providing stability and allowing the bore to be enlarged to accept a keyway and setscrews for secure shaft attachment. Designed for horizontal shaft orientation with a nominal drive ratio of 1:1 when paired with a matching sprocket.
Specification
Value
Brand
Martin
Model / Part Number
50B22
Product Type
Roller Chain Sprocket
Chain Number
#50
Chain Pitch
5/8" (0.625 in)
Number of Teeth
22
Hub Type
B (Hub One Side)
Number of Strands
Single (1)
Stock Bore Diameter
0.750 in (3/4")
Maximum Bore Diameter
2.000 in
Bore Type
Plain / Reboreable
Outside Diameter (OD)
4.722 in
Pitch Diameter
4.3917 in
Caliper Diameter
3.9917 in
Hub Diameter
3.000 in
Length Through Bore (LTB)
1.000 in
Tooth Width (Face Width)
0.343 in
Material
High Carbon Steel
Hardened Teeth
No (Non-Hardened)
Surface Treatment
Protective Coating
Sprocket Type
Standard ANSI Roller
Standards Met
ANSI B29.1
We warranty all items for 30 days from date of purchase.