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.
Specification
Housing
Aluminum
Sealed to prevent dust entry
Anodized finish, natural colorAN
Bevel gear wheels
Steel, case-hardened
Ball bearing
Steel
Sealed (sealing disks 2RS)
Temperature range:
-4 °F to +140 °F (-20 °C to +60 °C)
* Deviating from DIN 6885 ** Theoretically usable hub diameter *** Usable thread depth: min. 2 x d5 / d6 **** Usable thread depth: min. 1.6 x d7
Build & Price
Mechanical Features
Gear ratio i
1:1
Circumferential backlash at the drive shaft
3° ± 0.5°
Shaft direction of rotation
Any
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 68 °F (20 °C)
Maintenance
Permanent lubrication with grease, maintenance-free
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.
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)).
Weight: 0.121 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight. Phone: 1-800-397-6993
All Prices are in Canadian Dollars. Taxes Not Included.
Beginning April 14, 2025, we will implement a price adjustment. Some items will have a price decrease, while others will increase. The adjustment helps ensure our commitment to providing our customers with the best products and services.
We will honor current published prices through April 13, 2025.
Customers with pricing agreements will not be effected until annual pricing is reviewed.
Our customers in the US are served by our local branch office.
