Frame 23 Planetary Gearboxes
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.p
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InLine Specifications
MODEL | DRAWING NUMBER | GEAR RATIO | BACKLASH (arc min) |
MIN EFF (%) |
GEARBOX LENGTH (in) |
WT (lbs) | TORQUE | INERTIA | ||
---|---|---|---|---|---|---|---|---|---|---|
CONT. (in lbs) |
PEAK (in lbs) |
REFLECTED (oz in sec²) |
GEARHEAD (oz in sec²) |
|||||||
23P:3 | G2500003 | 3 | 6 | 90 | 2.66 | 1.8 | 380 | 594 | 0.001194 | 0.000487 |
23P:4 | G2500003 | 4 | 6 | 90 | 2.66 | 1.8 | 360 | 562 | 0.000950 | 0.000311 |
23P:5.5 | G2500003 | 5.5 | 6 | 90 | 2.66 | 1.8 | 317 | 496 | 0.000897 | 0.000175 |
23P:7 | G2500003 | 7 | 6 | 90 | 2.66 | 1.8 | 263 | 411 | 0.000888 | 0.000110 |
23P:10 | G2500003 | 10 | 6 | 90 | 2.66 | 1.8 | 119 | 179 | 0.000885 | 0.000055 |
23P:16 | G2500004 | 16 | 10 | 85 | 3.48 | 2.8 | 376 | 587 | 0.000950 | 0.000329 |
23P:22 | G2500004 | 22 | 10 | 85 | 3.48 | 2.8 | 380 | 594 | 0.000897 | 0.000184 |
23P:28 | G2500004 | 28 | 10 | 85 | 3.48 | 2.8 | 384 | 600 | 0.000888 | 0.000116 |
23P:40 | G2500004 | 40 | 10 | 85 | 3.48 | 2.8 | 388 | 607 | 0.000885 | 0.000057 |
23P:49 | G2500004 | 49 | 10 | 85 | 3.48 | 2.8 | 286 | 447 | 0.000888 | 0.000110 |
23P:55 | G2500004 | 55 | 10 | 85 | 3.48 | 2.8 | 347 | 542 | 0.000885 | 0.000055 |
23P:70 | G2500004 | 70 | 10 | 85 | 3.48 | 2.8 | 288 | 450 | 0.000885 | 0.000055 |
23P:100 | G2500004 | 100 | 10 | 85 | 3.48 | 2.8 | 110 | 164 | 0.000885 | 0.000054 |
Right Angle Specifications
MODEL NUMBER | DRAWING NUMBER | GEAR RATIO | BACKLASH (arc min) | MIN. EFF. (%) | GEARHEAD LENGTH (in) | WT. (lbs) | MAX RATED CONTINUOUS TORQUE (in-lb) | MOMENTARY TORQUE(in-lb) | REFLECTED PINION INERTIA (oz in sec²) |
GEARBOX INERTIA (oz in sec²) |
---|---|---|---|---|---|---|---|---|---|---|
23RA:3 | G2500053 | 3 | 11 | 085 | 6.49 | 4 | 380 | 594 | 0.001194 | 0.001530 |
23RA:4 | G2500053 | 4 | 11 | 85 | 6.49 | 4 | 360 | 562 | 0.000950 | 0.000904 |
23RA:5.5 | G2500053 | 5.5 | 11 | 85 | 6.49 | 4 | 317 | 496 | 0.000897 | 0.000488 |
23RA:7 | G2500053 | 7 | 11 | 85 | 6.49 | 4 | 263 | 411 | 0.000888 | 0.000303 |
23RA:10 | G2500053 | 10 | 11 | 85 | 6.49 | 4 | 119 | 179 | 0.000885 | 0.000150 |
23RA:16 | G2500054 | 16 | 15 | 80 | 7.32 | 5 | 376 | 587 | 0.000950 | 0.000346 |
23RA:22 | G2500054 | 22 | 15 | 80 | 7.32 | 5 | 380 | 594 | 0.000897 | 0.000193 |
23RA:28 | G2500054 | 28 | 15 | 80 | 7.32 | 5 | 384 | 600 | 0.000888 | 0.000121 |
23RA:40 | G2500054 | 40 | 15 | 80 | 7.32 | 5 | 388 | 607 | 0.000885 | 0.000060 |
23RA:49 | G2500054 | 49 | 15 | 80 | 7.32 | 5 | 286 | 447 | 0.000888 | 0.000112 |
23RA:55 | G2500054 | 55 | 15 | 80 | 7.32 | 5 | 347 | 542 | 0.000885 | 0.000057 |
23RA:70 | G2500054 | 70 | 15 | 80 | 7.32 | 5 | 288 | 450 | 0.000885 | 0.000056 |
23RA:100 | G2500054 | 100 | 15 | 80 | 7.32 | 5 | 110 | 164 | 0.000885 | 0.000054 |
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.
Other gearbox types:
For specific applications custom units using spur gears can be provided. Typically
these are useful on very small motors such as the size 11.
In other applications where weight or space is highly constrained, we can offer harmonic
style gearboxes. These gearboxes offer high ratios (but not low ones) in a compact
lightweight design. They offer low backlash, but they are not as stiff as the other
gearboxes. They do offer smooth motions for tool path applications.