Mounting Configuration
Frame Size Y1 Y2 Y3 Y4 Y5 Y6
Output Input* Output Input* Output Input* Output Input* Output Input* Output Input*
3A100, 3A105
0.29
G
0.26
G
0.29
G
0.26
G
0.45
G
0.42
G
3A110, 3A115 G G G G G G
3A120, 3A125 G G G G G G
3A140, 3A145 0.08 G 0.08 G 0.08 0.08
3B120, 3B125
0.48
G
0.37
G
0.48
G
0.48
G
0.61
G
0.66
G
3B140, 3B145 0.12 G 0.12 G 0.12 0.12
3B160, 3B165 0.20 G 0.20 G 0.20 0.20
3C140, 3C145
0.87
0.12
0.92
G
0.87
0.12
1.16
G
0.95
0.12
1.4
0.12
3C160, 3C165 0.20 G 0.20 G 0.20 0.20
3C170, 3C175 0.28 G 0.28 G 0.28 0.28
3D160, 3D165 1.16 0.18 1.32 G1.16 0.18 1.11 G1.48 0.18 1.59 0.18
3D170, 3D175 0.24 G 0.24 G 0.24 0.24
3E170, 3E175 1.95 0.24 1.93 G 1.95 0.24 1.59 G 1.90 0.24 2.80 0.24
11
Cyclo®BBB
Lubrication continued
Oil lubricated units are shipped without oil. Prior to initial start-up,
the unit must be filled with the correct amount of oil (see Figure 25).
For those units where both the gear and Cyclo®portions are oil lubri-
cated, the oil must be filled in two separate locations, one on the
gear housing and one on the Cyclo®housing.
Grease lubricated models are lubricated at the factory. Additional
grease does not need to be added prior to initial start-up.
Oil Replenishment and Change Interval
A. Maintain proper oil levels at all times.
B. An oil change after the first 500 hours of operation is highly rec-
ommended.
C. Sumitomo recommends an oil change every 2500 hours, or six
months, whichever comes first. If a proper preventive mainte-
nance program is implemented and maintained, a longer change
period may be acceptable.
D. If the unit is running in a high ambient, high humidity, or corrosive
environment, the lubricant will have to be changed more frequent-
ly. Consult the factory for recommendations.
E. Note: The Cyclo®portion and Bevel portion, where applicable,
must be filled with oil separately. Oil does not flow from one sec-
tion to the other.
Figure 25. Oil Fill Quantities Unit: U.S. Gallons *G = Grease
Double Reduction Units
A. The geared (output) portion is oil lubricated and must be filled by
the customer with the correct amount of oil (see Figure 25).
B. The Cyclo®(input) portion of all double reduction units is grease
lubricated at the factory. Additional grease is not required prior to
initial start-up.
Model Condition Interval
Single & Double Reduction
(Maintenance-Free Type)
Replenishment NOT REQUIRED
Overhaul Every 20,000 hours or every 4 - 5 years
Double Reduction
(Non Maintenance-Free Type)
Replenishment Less than 10 hours per day operation Every 3 - 6 months
10 - 24 hours per day operation Every 500 - 1000 hours
Change Speed reduction mechanism, high speed shaft bearings
(speed reducer type) Every 2 - 3 years
Figure 26. Grease Replenishment and Change Interval (Cyclo Portion)
Grease Replenishment and Change Interval
Bevel Portion
A. Grease replenishment is usually not necessary.
B. Drain, flush and regrease the bevel gearcase every 3000 - 5000
hours of operaton. The unit should be overhauled every 2 - 3
years
Cyclo Portion
A. On single reduction Cyclo®Bevel Buddybox (Cyclo®BBB) sizes
2A100~125 and 2B120~125, the Cyclo®portion is grease lubricat-
ed as standard and usually maintenance free.
B. For Cyclo®BBB sizes 2A140~145, 2B140~145, 2B160~165, and
all sizes of 2C, 2D, and 2E mounted in the Y2 and Y4 positions,
please refer to Figure 26 for the proper grease replenishment and
change interval.