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GN 3971

Bevel Gear Boxes

Housing Aluminum

GN 3971

Bevel Gear Boxes
Bevel Gear Boxes

GN 3971

Bevel Gear Boxes
Bevel Gear Boxes

Type

  • Type L: Angular gear 90°

Housing

  • Aluminum
  • Sealed to prevent dust entry
  • Anodized, natural color AN

Bevel gear wheels

Steel, case-hardened

Ball bearing

  • Steel
  • Sealed (sealing disks 2RS)

Temperature range: -20 °C to +60 °C

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.

Gear ratio i1 : 1
Circumferential backlash at the drive shaft3° ± 0.5°
Shaft direction of rotationAny
Life expectancy (guideline)1.000 hours under full load at a 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
MaintenancePermanent lubrication with grease, maintenance-free
b1Max. torque in NmMax. radial force in N*Max. axial force in N**
at 100 min-1at 500 min-1at 1000 min-1
180.350.10.056060
200.750.30.15100100
242.510.5120120
2641.50.75140140
30521240240
32831.5550550
351042550550

* At axial force = 0

** At radial force = 0

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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