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Chain Series No. POBCO Part No.* Nominal Corner Radius A Bolt Circle Track Radius Width W Thickness T 90° set Pieces** Inside B outside C Inside D outside E Plastic pcs/set Wood pcs/set One Piece Link Chain - Bevel Design Wear Strip - Non-Tab 800 881   CWS*-90 30B3 CWS*-90 24B3 CWS*-90 18B3 30 24 18 28-11/64 22-11/16 16-11/16 31-53/64 25-5/16 19-5/16 29-3/16 23-3/16 17-3/16 30-3/16 24-13/16 18-13/16 1-1/2 1 1 3/8 3/8 3/8 4 2 2 4 4 4 882 CWS*-90 30B5 CWS*-90 24B5 30 24 27-29/32 21-29/32 32-3/32 26-3/32 28-55/64 22-55/64 31-9/64 25-9/64 1-1/2 1-1/2 5/8 5/8 4 2 4 4 One Piece Link Chain - Rectangular Design Wear Strip - Tab 880 TAB 881 TAB CWS*-90 30R3 CWS*-90 24R3 CWS*-90 18R3   30 24 18   28-11/64 22-11/64 16-11/64   31-53/64 25-53/64 19-5/16   29-1/8 23-1/8 17-1/8   30-7/8 24-7/8 18-7/8   1-1/2 1-1/2 1-1/2   3/8 3/8 3/8   4 2 2   4 4 4   882 TAB CWS*-90 30R5 CWS*-90 24R5 30 24 27-29/32 21-29/32 32-3/32 26-3/32 28-55/64 22-55/64 31-9/64 25-9/64 1-1/2 1-1/2 5/8 5/8 4 2 4 4 Base Roller Chain - Rectangular Design Wear Strip 1873 TAB 1874 TAB CWS*-90 30R6 CWS*-90 24R6 CWS*-90 18R6   30 24 18   28-11/64 22-11/64 16-11/64   31-53/64 25-53/64 19-53/64   29-5/16 23-5/16 17-5/16   30-11/16 24-11/16 18-11/16   1-1/2 1-1/2 1-1/2   3/4 3/4 3/4   4 4 2   4 4 4   3873 TAB CWS*-90 30R7   30 28-11/64   32-5/64   29-5/16 30-11/16 1-1/2   3/4   4   4

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**Number of pieces per set depends upon wear material specified
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