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GN 3975 Worm Gear Reducers Housing Aluminum

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GN 3975 Worm Gear Reducers, Housing Aluminum

Product description

Information

Worm gear reducer GN 3975 can transmit high torque despite their very compact dimensions. They can readily be used for a multitude of applications, such as incline adjustments or to change the direction of shaft rotation.

The numerous fastening holes allow for simple mounting in any orientation or position. The parallel keys can take any angular positions.

Depending on the gear ratio, there may be no static self-braking between the worm screw and worm wheel, meaning that the worm wheel can be turned out of a resting state by a torque coming from the output end.

Specification

Housing
  • Aluminum
  • Sealed to prevent dust entry
  • Anodized, natural colorAN

Worm screw, steel
Worm wheel, brass
Ball bearing
  • Steel
  • Sealed (sealing disks 2RS)

Temperature range: -20 °C to +60 °C

RoHS

Technical drawing

3D
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GN 3975 Worm Gear Reducers, Housing Aluminum sketch

Article options / Table

Form

AOutput on one side
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m1d1 j6Gear ratio ib1b2b3 JS9d2 H7d3d4d5hl1l2l3l4t1t2t3t4m10
201213151823304065354412302027.41.56016123213.81.618.326
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m1d6*d7d8*m2m3m4m5m6m7m8m9
20M 44.2M 5265017.51.5312642.522.5
* Usable thread depth: min. 1.6 x d6 / d8

Build & Price

Open 3D configurator
m1
Form

Diameter d1
Gear ratio i
Finish

Mechanical Features

Circumferential backlash at the drive shaft

1° ± 0.5°

Shaft direction of rotation

Any

Worm wheel set design

Left-hand

Life expectancy (guide value)

1,000 hours under full load and rotational speed of 500 rpm,
assuming the gear box is operating for 20% of every 5 minutes
(1 minute of operation + 4 minutes break) at an ambient temperature of 20 °C

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m1Übersetzungmax. Antriebsdrehmoment in Nm*
bei 100 min-1
bei 500 min-1bei 1000 min-1max. Abtriebsdrehmoment in Nm*
bei 100 min-1
bei 500 min-1bei 1000 min-1
20132.11.81.5151311
20151.51.3112108
20181.10.90.71197
20230.90.70.51086
20300.60.50.48.575.5
20400.350.310.265.54.84
20650.240.20.164.53.83
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ÜbersetzungAntriebsseite
max Radialkraft in N**
max. Axialkraft in N***Abtriebsseite
max Radialkraft in N**
max. Axialkraft in N***Wirkungs-
grad in %
Selbst-
hemmung
statisch
1320020050050056
1525025050050052
1825025050050055x
2325025050050050x
3035035050050045x
4040040050050039x
6550050050050029x

*Input side speed, **at axial force = 0, ***at radial force = 0

Assembly Instructions

Do not exert any forces onto the housing or into the bearings during assembly. Use of the threaded holes d7 in the shaft is recommended.

The use of a corresponding coupling is recommended to compensate for manufacturing-related shaft offsets and runout tolerances as well as for damping vibrations and shocks.

Application Examples

MD3975_AN-45720-0

Selected Part (How to order)

Total (net)
208,92
plus VAT 39,69 €
gross 248,61 €
In stock
Weight: 0,422 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone +49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 50,00 €
All prices in accordance with our price list No. 54, valid from 1 May 2022, plus VAT only valid for Germany.

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Our service team is available from Monday to Friday between 7:00 AM and 5:30 PM: +49 7723 6507 - 0

To the customised elements | To the contact persons

GN 3975-20-A-12-13-ANGN 3975-20-A-12-15-ANGN 3975-20-A-12-18-ANGN 3975-20-A-12-23-ANGN 3975-20-A-12-30-ANGN 3975-20-A-12-40-ANGN 3975-20-A-12-65-AN

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