• From old stock. Had some rust and staining and I cleaned it up a bit. Has never been on a machine.Buyer will receive the sprocket shown.
        • 50 Chain Number
        • 1 Strand
        • 21 Teeth
        • Without Hardened Teeth
        • B Sprocket Style

        DESCRIPTION

        • Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

        FEATURES

        • Tolerances meet or exceed ANSI standards
        • Manufactured of high carbon steel
        • Precise machining and processes ensure consistent finish and high quality
        • Bores are concentric to pitch line, minimizing run out

        SPECIFICATIONS

        HARDENED TEETH Without Hardened Teeth
        PITCH DIAMETER [MIN] 4.190 in
        SPROCKET STYLE B
        CONSTRUCTION Solid
        PITCH DIAMETER 4.190 in
        LENGTH THROUGH BORE 1 in
        SERIES B
        NO. OF STRANDS ACROSS 1
        KEYWAY No Keyway or Setscrew
        CHAIN PITCH 5/8 in
        MARTIN NO. 50B21
        BORE RANGE [MAX] 2 in
        BORE RANGE [MIN] 3/4 in
        HUB DIA. 3 in
        BORE STYLE Minimum Bore
        OUTSIDE DIA. 4.5200 in
        OUTSIDE DIA. [MIN] 4.5200 in
        INCH/METRIC Inch
        CALIPER DIAMETER 3.78 in
        BORE TYPE Reborable
        WIDTH ACROSS TEETH 0.34 in
        HUB LENGTH THRU 0.657 in
        NO. OF TEETH 21
        MATERIAL Steel
        CHAIN NO. 50
        WEIGHT 2.4 LB
        EAN OR UPC 697950011738