This standard specifies the housing dimensions and tolerances of wear rings (shown in Figure 1) used for cylinder pistons and rods in the following size categories:
JIS B 8663:2001 history
2010JIS B 8663:2010 Hydraulic fluid power -- Cylinders -- Housing dimensions for rectangular-section-cut bearing rings for pistons and rods
2001JIS B 8663:2001 Hydraulic fluid power -- Cylinders -- Housing dimensions for rectangular-section-cut bearing rings for pistons and rods