Torque Limiters SK
Mounting-Instructions for R+W Torque Limiters
- All torque limiters are supplied to ISO bore tolerance grade H7. The fit tolerance of the hub/shaft connection must be between 0.01 and 0.05 mm.
- Ensure that the coupling mounts smoothly onto the shaft prior to final installation.
- Lightly oil the shaft prior to installation. Do not use sliding grease, or oils and grease with molybdenum disfluide or other high-pressure additives. Any keyways in the shaft will not affect the functioning of the clamped connection.
Model SK1/SKP
Torque Limiter Model SK1 has an integrated bearing a for support of the attached
component (for example a pulley or sprocket).
Do not exceed the maximum radial force 2 (see table).
By centering the load between the dimension S, addition separate bearing support is not required.
For offset mounting, additional bearings are required.
This is recommended, for example, if the attached component has a very
small diameter or the drive element has a high thickness.
Depending on the installation situation, ball bearings, needle
bearings or bushings may be used.
| Series | 1.5 | 2 | 4.5 | 10 | 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 | 2500 |
| Radial load capacity, max. (N) |
50 | 100 | 200 | 500 | 1400 | 1800 | 2300 | 300 | 3500 | 4500 | 5600 | 8000 | 12000 | 20000 |
| (S) from-to (mm) | 3-6 | 5-8 | 6-11 | 6-14 | 7-14 | 7-17 | 10-24 | 10-24 | 12-26 | 12-28 | 16-38 | 16-42 | 20-50 | 28-60 |
Disengagement torque setting
R+W torque limiters are factory set to the customer specified disengagement torque, which is marked onto the coupling. The adjustment range (min/max) is also marked on the adjustment nut (1). The customer can adjust the disengagement torque as long as it falls into the range (12) indicated on the adjustment nut.
The adjustment range may not be left during setting.
To adjust the disengagement torque, loosen the locking screws (11) and rotate the adjustment ring using a spanner wrench to the desired new setting. Tighten the 3 locking screws (11) and test the coupling.
CAUTION:
R+W torque limiters incorporate
disc springs that exhibit a special
spring characteristic. It is
important to stay in the max-min
range of the coupling.
Mounting and Dismounting: More details about Torque Limiters SK
Click here for our PDF with mounting hints and installation manuals about R+W Torque Limiters.
