Mitsubishi HG-RR User Manual

8. HG-JR SERIES 

8 -  21 

 
8.6 Oil seal 

The oil seal prevents the entry of oil into the servo motor. 
Install the servo motor horizontally, and set the oil level in the gear box to be lower than the oil seal lip 
always. 

Gear

Shaft

Servo motor

Oil seal

Height above oil level h

Lip

 

Servo motor 

Oil level h 

[mm] 

HG-JR53(4)(B) 
HG-JR73(4)(B) 
HG-JR103(4)(B) 
HG-JR153(4)(B) 
HG-JR203(4)(B) 

18 

HG-JR353(4)(B) 
HG-JR503(4)(B) 

20 

HG-JR703(4)(B) 
HG-JR903(4)(B) 
HG-JR601(4)(B) 
HG-JR801(4)(B) 
HG-JR12K1(4)(B) 
HG-JR701M(4)(B) 

25 

HG-JR11K1M(4)(B) 
HG-JR15K1M(4)(B) 

40 

HG-JR15K1(4) 
HG-JR20K1(4) 
HG-JR25K1(4) 
HG-JR22K1M(4) 
HG-JR30K1M(4) 
HG-JR37K1M(4) 

50 

HG-JR30K1(4) 
HG-JR37K1(4) 
HG-JR45K1M4 
HG-JR55K1M4 

55 

 
8.7 Cooling fan 

For the servo motor with a cooling fan, leave the following distance between the servo motor's suction face 
and the wall. 

 

Servo motor 

Distance L [mm] 

Servo motor

Cooling fan

L or more

Intake

 

HG-JR15K1(4) 
HG-JR20K1(4) 
HG-JR25K1(4) 
HG-JR30K1(4) 
HG-JR37K1(4) 
HG-JR22K1M(4) 
HG-JR30K1M(4) 
HG-JR37K1M(4) 
HG-JR45K1M4 
HG-JR55K1M4 

150