Empire Magnetics Inc. prepares gearboxes to operate in the same environments as the motors and resolvers. We start with high quality planetary gearboxes. These units are selected to provide maximum torque capacity with the smallest practical volume. We then upgrade the materials construction and lubrication to meet the requirements of the environment.

(text continued below table)

Specifications

Model Number

Drawing Number

Gear Ratio

Backlash
(degrees)

Min Eff (%)

Gearhead Length (in)

Weight ( lbs)

Max Rated Continuous Torque (in-lb)

Momentary Torque (in-lb)

Reflected Inertia (oz-in2)

75P:3

G2500038

3

0.1

90%

9.11

77

13339

20009

129.70

75P:4

G2500038

4

0.1

90%

9.11

77

12713

19868

76.81

75P:5.5

G2500038

5.5

0.1

90%

9.11

77

12765

19950

40.53

75P:7

G2500038

7

0.1

90%

9.11

77

10809

16892

24.67

75P:10

G2500038

10

0.1

90%

9.11

77

7016

10524

11.85

75P:16

G2500039

16

0.17

85%

11.99

116

15298

23907

7.91

75P:22

G2500039

22

0.17

85%

11.99

116

15561

24318

41.30

75P:28

G2500039

28

0.17

85%

11.99

116

15746

24608

25.28

75P:40

G2500039

40

0.17

85%

11.99

116

16006

25014

12.16

75P:49

G2500039

49

0.17

85%

11.99

116

11968

18704

24.01

75P:55

G2500039

55

0.17

85%

11.99

116

14464

22604

11.70

75P:70

G2500039

70

0.17

85%

11.99

116

12134

18962

11.54

75P:100

G2500039

100

0.17

85%

11.99

116

6447

9671

11.39


Gearboxes for stepper motors and brushless motors are designed for the accurate positional functions desired of such systems.
All of the planetary gearheads provide "in line" power transfer so there is no offset from the motor shaft to the output shaft of the gearhead.
Vacuum rated gearboxes have all the materials selected or replaced with items that are compatible with VC, VS, or VX grades. The VS and VX grades are cleaned in the same exacting fashion as other components of this vacuum level.
For VX grade we offer dry film lubrications as an option, while the vapor pressure is lower on dry film lubrications, the wear life is also lower. The application specifics must be considered to make the decision.
Planetary gearboxes are available for stepper motors from size 17 to size 65, adapted versions of these same gearboxes can be mounted to brushless servo motors as well.