1271-12-43 MCLENNAN, 1271-12-43 Datasheet
![MOTOR, GEARED, 43:1, 12VDC](/photos/21/34/213449/42419905_sml.jpg)
1271-12-43
Manufacturer Part Number
1271-12-43
Description
MOTOR, GEARED, 43:1, 12VDC
Manufacturer
MCLENNAN
Datasheet
1.1271-12-188.pdf
(1 pages)
Specifications of 1271-12-43
Body Diameter
27mm
Rotational Speed Max
40rpm
Torque Max
3.8N-cm
External Height
41mm
Current Rating
50mA
External Diameter
27mm
External Length / Height
56.5mm
No Load Speed
60rpm
Svhc
No SVHC (15-Dec-2010)
Mclennan Servo Supplies Ltd.
Geared dc instrument motor
The 1271 geared instrument dc motor is ideally suited to a wide range of
applications requiring a combination of low speed operation and small unit
size. The integral iron core dc motor provides smooth operation and a bi-
directional variable speed capability while the gearhead utilises a multi-
stage metal spur gear train rated for a working torque up to 0.2 Nm.
The unit, which is suitable for mounting in any attitude, provides reliable
operation over a wide ambient temperature range and is equipped with an
integral VDR ( voltage dependant resistor ) electrical suppression system to
minimise electrical interference.
The 1271 unit offers a range of gear ratio options for operating speeds from
5- 200 rpm and is ideally suited to applications where small size and low
unit price are important design criteria.
Dimensions: mm
Specification
Order Code
1271-06- 10
1271-12- 10
1271-06- 21
1271-12- 21
1271-06- 43
1271-12- 43
1271-06- 90
1271-12- 90
1271-06-188
1271-12-188
1271-06-392
1271-12-392
Max No Load Current: 6 volt types: 30 mA
Max Radial shaft load : 10N
Max Axial shaft load : 5 N
Ambient temperature range: -20 to +60 deg.C
8.5
1
21
Dimension ‘ L’
Length
( mm )
‘L’
36
36
36
36
41
41
41
41
46
46
46
46
12 volt types: 20 mA
Gear
ratio
188:1
188:1
392:1
392:1
4.5
10:1
10:1
21:1
21:1
43:1
43:1
90:1
90:1
∅ 9
Nominal
Voltage
Tel: +44 (0)8707 700 700
( Vdc )
12
12
12
12
12
12
15.5
6
6
6
6
6
6
8.5
leads 120 mm typical ( exit position not guaranteed)
3.5
No-Load
speed
∅ 4 h8
( rpm )
215
255
105
125
52
60
25
30
12
14
6
7
Rated
Speed
∅ 27
2 x M3 4mm deep max.
( rpm )
120
165
60
80
32
40
13
18
www.mclennan.co.uk
7
9
4
5
1271 series
Rated
Torque
14.0
14.0
20.0
20.0
( Ncm )
1.5
1.5
2.5
2.5
3.8
3.8
8.0
8.0
20
Rated
Current
( mA )
85
50
85
50
85
50
85
50
85
50
75
45
Mass
( grams)
55
55
55
55
57
57
58
58
59
59
60
60