while the hexagonal bore design provides high torque ratings
the 10B K2 attachment has a bent tab on both sides with two holes each for mounting
This 1-1/8" hex shaft coupler is manufactured from high quality 1018 carbon steel with a black oxide coating
10B A1 Attachment Dimensions
100E19 sprockets are manufactured to accept a E type QD bushing which
1310 Taper Lock Bushing X 25mm Bore Iwis Roller Chain while the hexagonal bore designThis 1310 taper lock bushing is a high quality, durable, and dependable product that has been precisely manufactured to out last and out perform the competition. 1310 taper lock bushings are used in a wide range of applications including; belt pulleys, sprockets, drum pulleys, drive pulleys, tail pulleys, sheaves, and gears, which are items that we also offer! Additionally this bushing features a 25 millimeter bore with a standard keyway, for more