Mb Ia, Iaw; Exploded View Of Mb Ia 31, Mb Ia 22 To Mbia 25; Parts List For Mb Ia; Torque Arm Kit - Nidec Leroy-Somer Mb 3101 Mantenimiento

4 - Mb IA, IAW

For applications in the food processing industry, we supply
gearboxes conforming to the machinery directive 89/392/
EEC and complying with the requirements of the USDA
(United States Department of Agriculture) with the PAO H1
option: lubricant which can come into accidental contact with
food.
They are painted in white RAL 9010 and wrapped in specially
designed packaging to withstand normal transport and
storage conditions. Avoid any abrupt movements.
4.1 - Exploded view of Mb IA 31, Mb IA 22 to Mb IA 25
180
182
215
010
098
258
4.2 - Mb IA parts list
Ref. Description Qty
001 frame 1
hollow shaft
010 1
protective cover
041 worm 1
051 bronze wheel 1
061 bearing (left side) 1
062 bearing (right side) 1
063 input bearing 1

4.3 - Torque arm kit

Ref.
017 torque arm
195 st. steel fixing screws

4.4 - Torque arm kit with sealing cartridge

Mb IA 31, Mb IA 22 to Mb IA 25
Ref.
009 seal retainer
017 torque arm
095 O ring seal
097 cartridge seal
195 st. steel fixing screw
Mounting the torque arm: see ref. 2910 § 4.1.
14
092
120
122
124
062
199
222
220
257
137
135
093
Ref. Description
064 DE bearing
086 key (Mb iA 31)
091 seal (left side)
092 seal (right side)
093 input seal
119 I circlip (left side)
120 I circlip (right side) (Mb iA 22 to 25)
Description
Description
MB IA, IAW
Identification :
1 - gearbox type: Mb IA 2401
2 - operating position: B5
3 - mounting form: NU, H hollow output shaft
4 - exact reduction: 40
5 - manufacturing number: 303257020/001
6 - lubricant
5
260
001
064
128
253
256
041
127
063
129
139
Qty Ref. Description
washer (left side)
1 121
(Mb iA 22 to 25)
washer (right side)
1 122
(Mb iA 22 to 25)
adjusting shims
1 123/124
(Mb iA 22 to 25)
1 127
E circlip (Mb iA 22 to 24)
1 128
E circlip (Mb iA 22 to 25)
1 129
cable gland washer (Mb iA 25)
1 135
I circlip

4.5 - Sealing cartridge kit

Qty Ref.
009
1
095
4
097
179
181
Qty
1
1
1
1
4
1 2 3
MOTEURS
LEROY-SOMER
Mb IA 2401 B5 NU H MUFT
303257020 / 001
N°
i
40 34, 8
min -1
PAO ISO VG 460 H1
4
255
051
086
212
061
123
121
119
097
095
Qty Ref.
1 137
1 139
8/6 180
1 ou 2 212
1 ou 2 253
1 255
1 256/257
Description
seal retainer
O ring seal
cartridge seal
st. steel fixing screw
st. steel washer
Mb 3101, Mb 2000 - Maintenance
6
091
017
195
009
181
179
Description Qty
1
washer (Mb iA 25)
adjusting shims
1 set
(Mb iA 25)
st. steel cover fixing
4
screw (010)
1
spacer (Mb iA 31)
1
blanking plug
1
breather plug
3
oil plug
Qty
1
1
1
1
4
5062 en - 2019.10 / c