Our customers in the USA are serviced by JW Winco. Please, use the website jwwinco.com
Our customers in the USA are serviced by JW Winco. Please, use the website jwwinco.com
Bevel gear boxes GN 3971 can transmit high torque despite their very compact dimensions. They can readily be used for a multitude of applications, such as height 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.
Housing
Bevel gear wheels
Steel, case-hardened
Ball bearing
Temperature range: -20 °C to +60 °C
RoHS
| L | Angular gear 90° |
| b1 | d1 j6 | b2 | d2 | d3** | h | l1 | l2 | l3 | l4 | m1 | t1 | t2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | 6 | 2 | 13 | - | 0,8 | 32 | 12 | 8 | 2 | 23 | 2,1 | 15,4 |
| 20 | 8 | 2 | 16 | 9,2 | 0,8 | 35 | 12 | 8 | 2 | 25 | 1,95 | 15,3 |
| 24 | 10 | 4* | 19 | 11,8 | 1,5 | 42 | 16 | 12 | 3 | 30 | 2 | 18 |
| 26 | 12 | 4 | 21 | 13,6 | 1,5 | 46 | 16 | 12 | 3 | 33 | 2 | 19,5 |
| 30 | 12 | 4 | 24 | 16,4 | 1,5 | 53 | 16 | 12 | 3 | 38 | 2,1 | 18,3 |
| 32 | 12 | 4 | 28 | 19,8 | 1,5 | 56 | 16 | 12 | 3 | 40 | 2,1 | 18,3 |
| 35 | 12 | 4 | 30 | 20,4 | 1,5 | 60 | 16 | 12 | 3 | 42,5 | 2,1 | 18,3 |
| b1 | d4 | d5*** | d6*** | d7**** | m2 | m3 | m4 | m5 |
|---|---|---|---|---|---|---|---|---|
| 18 | 3,1 | M 3 | M 3 | M 3 | 6 | 8,5 | 13 | 11 |
| 20 | 3,1 | M 3 | M 3 | M 3 | 7 | 10 | 15 | 10 |
| 24 | 4,1 | M 4 | M 4 | M 4 | 8 | 12 | 18 | 16 |
| 26 | 4,1 | M 4 | M 4 | M 5 | 9 | 13 | 20 | 16 |
| 30 | 4,1 | M 4 | M 4 | M 5 | 11 | 15 | 22 | 16 |
| 32 | 4,1 | M 4 | M 4 | M 5 | 12 | 17 | 24 | 16 |
| 35 | 4,1 | M 4 | M 4 | M 5 | 13,5 | 17,5 | 26 | 16 |
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Gear ratio i |
1:1 |
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Circumferential backlash at the drive shaft |
3° ± 0.5° |
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Shaft direction of rotation |
Any |
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Life expectancy (guide value) |
1,000 hours under full load and rotational speed of 500 rpm, |
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Maintenance |
Permanent lubrication with grease, maintenance-free |
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*at axial force = 0, **at radial force = 0 |
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Do not exert any forces onto the housing or into the bearings during assembly. Use of the threaded holes d6 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. |
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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
