Direction of rotation controlled by long-life mechanical anti-return device
Permanent magnet rotor
Part numbers
Type
82 344 748
3 Watts
Type
82 344 0
Output speed
20 rpm
Ratios (i)
30
Direction of rotation
Clockwise
Voltages/Frequencies
230 V 50 Hz
Specifications
Motor
Gearbox
Maximum permitted torque from gearmotor under
continuous conditions for 1 millions turns of the
gearmotor (Nm)
Axial load static (daN)
Radial load static (daN)
Absorbed power (W)
Motor output (W)
Maximum temperature rise (°C)
Ambient temperature (°C)
Weight (g)
Wires length mm (approximately)
Protection rating
82 340 0
81 021 0
0.5
1
8
3
0,16
55
-5 →+60
160
250
IP40
Principles
This device is situated inside the gearbox and is particularly recommended when gearbox protection is required in the event of accidental overloading.
In this system, the final gear is connected to the gearbox output shaft by means of a friction assembly.
In some cases, this device can be used for time adjustment or zero reset on timers.
The standard torque setting is from :
- 1.8 to 2.5 cm/kg for gearbox 810210
- 7 to 10 cm/kg for gearbox 810330
Principles
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
02/11/2015
This device, situated inside the gearbox, enables the output shaft to be rotated by
an external force (manual or mechanical) independently of the final wheel of the gearbox.
www.crouzet.com
Description
A specially shaped cam (1) is directly fitted on the gearbox output shaft. The final wheel (2) of the gearbox pivots freely on this shaft and has a housing into which the cam fits (1).
Between the cam and final wheel two rollers are symmetrically located held in place under the pressure of two springs (4).
When the geared motor is energised, it causes the final wheel (2) to rotate which, via the two rollers (3), in turn drives the output shaft.
If, under external force, the output shaft is turned in the same direction as the final wheel but at a higher speed, the two rollers (3) release the final wheel and the shaft speed becomes
independent of the speed of the final wheel.
The rollers can be located according to whether the final wheel is rotating clockwise or anti-clockwise.
Can be used with gearboxes 81 021 0 and 81 033 0.
N
o
Legend
Dimensions (mm)
82 344 0
N
o
Legend
2 fixing holes Ø 3.2
(pushed-in shaft)
3.5 across flat
Fixing clip
Dimensions (mm)
Shaft 79 200 967
N
o
Legend
(pushed-in shaft )
Dimensions (mm)
Shaft 79 200 779
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
02/11/2015
www.crouzet.com
N
o
Legend
(pushed-in shaft )
Dimensions (mm)
Shaft 70 999 421 SP1295-10
N
o
Legend
Across flat
Curves
Graph of torque versus speed
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
02/11/2015
N
o
Legend
RPM
www.crouzet.com
Product adaptations
Different voltages available
Special cable lengths
Special connectors
Special output shafts
Special gearbox ratios
Special gear wheel material
Special output bearings
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
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