MIJNO MNA Gearbox

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Low Backlash NEMA Fit

A range of gearboxes aimed primarily at NEMA flange motors, ie stepper motors and many US manufactured servo motors. These gearboxes feature double supported hardened planet gears and unibloc output shaft and planet carrier. Available in NEMA frame sizes 17,23,34 and 42 the torque outputs range from 1Nm to 120Nm. Gear ratios range from 3:1 up to 175:1 MNA17 uses a bonded pinion , and Nema23 and above features a clamp fitting pinion.

Performance Data

MNA 017 MNA 023 MNA 034 MNA 042
Rated Speed rpm 3000 4000 4000 4000
Rated torque Nm 4.50 7.00 30.00 60.00
Accel torque* Nm 10.00 60.00 120.00
Maximal backlash 90 20 20/10 20/10
Gear ratio i A B C D
Efficiency** % 80/75/70 96/91 96/91 96/91/86
Life time*** h 15000 10000 10000 10000
Temperature range °C -20 to +80 -20 to +80 -20 to +80 -20 to +80
Noise level LpA 70 66 68
* S5 duty service ** With full load ***At input rated speed and rated output torque

Ratio Group A 1 Stage i= 4 2 Stages i= 14, 25 3 stages i= 51, 93, 169
Ratio Group B 1 Stage i= 4, 5, 7, 10 2 Stages i= 16, 20, 25, 35, 50, 70, 100
Ratio Group C 1 Stage i= 3, 4, 5, 7, 10 2 Stages i= 16, 20, 25, 35, 50, 70, 100
Ratio Group D 1 Stage i= 3, 4, 5, 7, 10 2 Stages i= 16, 20, 25, 35, 50 3 Stages i= 64, 80, 100, 125, 175




















Gearhead Dimensions (mm)

A
Pilot Diameter
B
Bolt Circle Diameter
C
Thread Size
D
Output Shaft Diameter
E
Output Shaft Length
F
Pilot Length
G*
Gearhead Body Length
H
External Diameter
MNA 017 22 43.80 M3 6 20 3 38-57 39
MNA 023 38.10 h7 66.68 5.20 9.52 h7 25.40 1.57 68.50-85.50 39
MNA 034 73.3 98.42 5.50 12.70 31.75 1.57 104.5-140.5 83
MNA 042 55.55 125.73 7.20 15.87 38.10 2.36 141-224 115

J
Input Pilot Diameter
L
Flange Thickness
N
Keyway Depth
P
Keyway Width
R
Keyway Length
MNA 017 22 6.5 - - -
MNA 023 38.15 5 0.4 flat none 19.05 flat
MNA 034 73.03 10 1.78 3.18 26.92
MNA 042 55.58 13 2.79 4.78 28.70
* Depends upon number of gear stages and does not include motor length

The above information is believed to be correct. Its accuracy or completeness is not guaranteed, nor is the suitability of any product for any given purpose implied.

Total Motion Systems Ltd reserves the right to supply products which may differ slightly from those described above.

Total Motion Systems Ltd.,  Unit 19 Lea Hall Enterprise Park, Wheelhouse Road, Rugeley, Staffordshire, WS15 1LH
Tel: +44 (0)1889 577576 Fax: +44 (0)1889 570023 email: sales@totalmotionsystems.co.uk

In The Republic Of Ireland:  Richard Colson,  Derryrush, Rosmuc, Co. Galway, Ireland.
Tel/Fax: +353 (0)91 574991 Mobile: +353 (0)87 9083410 email: sales@totalmotionsystems.ie


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