Rotary Dampers Catalog - ACE - #9

Max. rotation speed: Max. cycle rate: Operating temperature: Weight:

Body and cap material: Rotating shaft material: Oil type:

50 rpm

12 cycles/min

-10° to 50° C

47A: 49g, 57A: 75g

Steel (SCP440)

NYLON (with glass)

Silicone

Standard torque is decided at 20 rpm and 23° C ± 2° C

10 * " 1.6

2—R4.5

Rotary damper torque var­ies according to the ambient temperature. Refer to the chart to the right which shows the torque change under differ­ent temperatures. This occurs becuase the oil viscosity varies according to the temperature.

Temperature characteristics at 20 rpm

DT-47A-203

torque Nm

8

6

4

2

10 20 30 40 50 60 ^-C

Speed characteristics at 23"C

11.2 *⁰³

1 .6

Rotary damper torque var­ies according to the rotation speed. Refer to the diagram to the right.

torque Nm

2—R5.5

DT-57A-503

8

6

4

2

0 10203040 5060 rpm

This damper is a two way torque damper. There is no support for the shaft in the damper structure. Support for the shaft must be provided. Please use the recommended shaft dimensions. When mounting the shaft, ensure as tight a fit as possible. Refer to the dimensions in the diagrams at the right.

Dimensions in mm

DT-47A

DT-57A

47A

1

DT = Two Way 47A

57A

Blank = Two Way

DT-47A-203

DT-57A-503

203 = 2 ± 0.3 (20 ± 3) 503 = 4.7 ± 0.5 (47 ± 5)