The universally applicable and maintenance-free worm gear unit is available in a compact size with a center distance of 20 mm and offers eight different gear ratios. The housing is made of either anodized aluminum or zinc and is completely sealed against grease leakage and dust ingress. The worm gear set has a left-hand lead, and the shaft's rotation direction can be chosen freely.
Special Features
- Center distance: 20 mm
- Maintenance-free grease lubrication
- Housing: Anodized aluminum or zinc with a material-saving design
- Eight gear ratios from 5:1 to 65:1
- Torsional backlash at the output shaft: 1° ± 0.5°
- Duty cycle: 20% in a 5-minute cycle (1 minute ON, 4 minutes OFF
-
Service life: 1,000 operating hours under the following conditions
- Full load,
- Input speed of 500 rpm,
- Duty cycle of 20% in a 5-minute cycle, and
- Ambient temperature of 20°C
Variant Key
The Ket-Motion 2020 K worm gear unit is available in different versions. The specific configuration is determined using an ordering code, which can be found in the data sheet.
| Item number | Ratio | Self-locking static |
Output speed range n in rpm
|
Max. output torque M in Nm
|
Max. drive torque M in Nm
| Drive side Radial force1) FR in N
|
Drive side Axial force2) FA in N
|
Degree of efficiency in %
|
|
2020.00-XXKR65
| 65 : 1 | yes | 100/500/1000 | 4.5/3.8/3 | 0.2/0.2/0.2 | 500 | 500 | 29 |
|
2020.00-XXKR40
| 40 : 1 | yes |
100/500/1000
| 5.5/4.8/4 | 0.4/0.3/0.3 | 400 | 400 | 39 |
|
2020.00-XXKR30
| 30 : 1 | no |
100/500/1000
| 8.5/7/5.5 | 0.6/0.5/0.4 | 350 | 350 | 45 |
|
2020.00-XXKR23
| 23 : 1 | no |
100/500/1000
| 10/8/6 | 0.9/0.7/0.5 | 250 | 250 | 50 |
|
2020.00-XXKR18
| 18 : 1 | no |
100/500/1000
| 11/9/7 |
1.1/0.9/0.7
| 250 | 250 | 55 |
|
2020.00-XXKR15
| 15 : 1 | no |
100/500/1000
| 12/10/8 |
1.5/1.3/1
| 250 | 250 | 52 |
|
2020.00-XXKR13
| 13 : 1 | no |
100/500/1000
| 15/13/11 |
2.1/1.8/1.5
| 200 | 200 | 56 |
|
2020.00-XXKR05
| 5:1 | no |
100/500/1000 | 10/8/6 |
2.9/2.3/1.7
| 200 | 200 | 70 |
