SMC MSQ Series rotary table, rack and pinion, MSQB20A M9BAL Folding Ball Hex Key Set Magic Ring aluminum and thin wall steel aluminum and thin wall steel Specification item model symbol Specification information With auto switch D With auto switch form pneumatic type Mounting support type B Basic type (with bosses on both sides) tube inner diameter 40 tube inner diameter 40mm Types of port screws Rc cylinder stroke 75 Cylinder stroke 75mm cushion rubber cushion Rod end screw shape rod end male thread with bellows doesn't exist auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard