"Ruchservomotor"
Direct
drive systems
"Ruchservomotor"
Rotary
Stepping (stepper) motors "Ruchservomotor" Ltd.
Rotary stepping motors used for rotary tables and based on direct drive technology.
Specific features:
Short design description.
A rotary stepping table
(motor) consists of an oval inductor (1), forcer (2) and an air bearing.
The inductor has perimeter spaced thread. The forcer includes electromagnetic
modules, located around the edges and a pneumatic system with jets. An air-magnetic
suspension holds the inductor in alignment direction to the forcer; an air bearing
holds it in the direction perpendicular to an axis.
Possible fields of application :
|
Measurement unit |
RRM-M-0.64-300x40 |
RRM-M-0.64-140x36 |
RR1M-M-1.00-140x37.5-HS |
RRM-M-0.64-350x45-HS |
| Outside diameter and height, mm |
300 x 40 |
140 x 36 |
140 x 36 |
350 x45 |
| Hollow shaft diameter, mm |
30
|
36
|
36
|
150
|
| Period division of stator, Tz |
0.40 |
10 |
10 |
22' 5'' |
| Holding torque, Nm |
16 |
3.6 |
3.0 |
30 |
| Intrinsic Holding torque, Nm |
1,3
|
0,3
|
0,4
|
0,5
|
| Period division of motor, Tz |
0.40 |
10 |
10 |
22' 5'' |
| Air gap, mm 10-3 |
15 |
15 |
10-15 |
12-14 |
| Weight, kg |
5.6 |
1.2 |
1.2 |
8.5 |
| Compressed air consumption, litre/min |
7.0 |
10.5 |
10.5 |
9.5 |
| Nominal current/phase, À |
3 |
3 |
3 |
3 |
| Resistance/phase, Ohm |
1.2 |
0.7 |
0.7 |
1.7 |
| Inductance/phase, mH |
1.6
|
1.2
|
1.0
|
3.19
|
| Repeatability
accuracy (open loop) |
30" |
30" |
30" |
30" |
| Max. Speed, rad/s |
6.0 |
12 |
12 |
12 |
| Max. Acceleration, rad/s2 |
360 |
1300 |
1300 |
1300 |
| Angular accuracy |
1' |
1' |
1' |
1' |
| Resolution |
20" |
20" |
20'' |
20'' |
| Moment of inertia, kg .m2 |
0.0287
|
0.0015
|
0.0015
|
0.058
|
| Drawing with overall and join dimension | show | |||
| Photography |
*- operating air pressure
3.2+/-0.1Bar
HS - motor has built-in Hall-sensor feedback
All data tolerance ±10%.
