Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 610

Part 9: Review on Replacement of Optional Peripheral Equipment
11K_4 MR-RB6B-4/MR-RB60-4/MR-RB6K-4
15K_4
2- 10
mounting hole
10
15
15
82.5
30K_4 MR-RB136-4/MR-RB138-4
37K_4
2-φ10 mounting hole
45K_4
55K_4
10
15
230
260
15
230
Note 1. One cooling fan for MR-RB136-4/MR-RB138-4/MR-RB137-4/MR-RB13V-4.
MR-J3 series
15 197
230
260 215
15
230
Cooling fan mounting screw
4-M3 screw
82.5
15
197
215
15
Cooling fan (Note 1)
2- φ 10 mounting hole
Air intake
10
2.3
15
15
15
2-φ10 mounting hole
Intake
10
2.3
15 230
15
260
15
230
9 - 9
MR-J4 series
MR-RB5K-4/MR-RB6K-4
Cooling fan intake
15
230
260
15
230
Screw for mounting cooling fan
4-M3 screw
82.5 82.5
MR-RB137-4/MR-RB13V-4
15
15
Cooling fan (Note 1)
2.3
197 15
215
Intake
2.3
15
197
215