Bevel Gear Boxes and Worm Gear Reducers

Product catalog summary

Overview
This document provides technical specifications and ordering information for Ganter's standard parts, specifically focusing on bevel gear boxes (GN 3971) and worm gear reducers (GN 3975). These components are designed for high torque transmission in compact dimensions, suitable for various applications such as height and incline adjustments or changing shaft rotation direction.

Bevel Gear Boxes (GN 3971)

Material and Design: The housing is made of anodized aluminum, sealed to prevent dust entry. Bevel gear wheels are steel and case-hardened, with sealed steel ball bearings.
Specifications: Temperature range is -20 °C to +60 °C. The gear ratio is 1:1 with a circumferential backlash of 3° ± 0.5°.
Performance: Capable of transmitting high torque with maximum radial and axial forces specified for different sizes. Life expectancy is 1,000 hours under full load at 500 rpm.
Assembly: Features numerous fastening holes for versatile mounting. Permanent lubrication with grease ensures maintenance-free operation.

Worm Gear Reducers (GN 3975)

Material and Design: Similar to GN 3971, the housing is anodized aluminum. The worm screw is steel, and the worm wheel is brass, with sealed steel ball bearings.
Specifications: Temperature range is -20 °C to +60 °C. Gear ratios vary, affecting static self-braking capabilities.
Performance: Maximum input and output torques are specified for different gear ratios, with efficiency percentages provided. Life expectancy is similar to GN 3971.
Assembly: Includes recommendations for using threaded holes and couplings to compensate for shaft offsets and vibrations.

General Information
Both gear types are designed for easy mounting in any orientation, with parallel keys allowing for various angular positions. The document also references additional resources for related components and standards.

Catalog excerpts

Bevel Gear Boxes and Worm Gear Reducers-1

Standard Parts. Ganter.

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Bevel Gear Boxes Housing Aluminum * Deviating from DIN 6885 ** Theoretically usable hub diameter -- Aluminum -- Sealed to prevent dust entry -- Anodized, natural color AN Information 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. see also... • Worm Gear Reducers GN 3975 → Page 4 gear wheels...

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GN 3971 Bevel Gear Boxes continued *** Usable thread depth: min. 2 x d 5 / d 6 **** Usable thread depth: min. 1.6 x d7 Mechanical Features Gear ratio i Circumferential backlash at the drive shaft Shaft direction of rotation 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 Permanent lubrication with grease, maintenance-free * At axial force = 0 ** At radial force = 0 Assembly Instructions Do not exert any forces onto...

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Worm Gear Reducers Housing Aluminum -- Aluminum -- Sealed to prevent dust entry -- Anodized, natural color AN • Worm screw, steel wheel, brass bearing -- Steel -- Sealed (sealing disks 2RS) Worm gear reducers 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...

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GN 3975 Worm Gear Reducers continued * Usable thread depth: min. 1.6 x d 6 / d 8 Mechanical Features Circumferential backlash at the drive shaft Shaft direction of rotation Worm wheel set design 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 Permanent lubrication with grease, maintenance-free Input side Output side Max. axial force in N*** * Input side speed ** at axial force = 0 *** at radial force = 0 Assembly Instructions...

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Gears Application Examples

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The Current Standard Parts Catalogue 18.0 Over 60,000 Standard Parts. 2,200 Pages. Easy. Comprehensive. Essential. Request Now. Operating with Handles and Knobs · Operating by Using Machine and Device Handles · A with Handwheels and Cranks · Adjusting, Positioning, Locking with and without Position Tensioning, Clamping, Switching with Levers · Tensioning, Clamping with Knobs · Tensio Eccentric Cams and Wedge Clamps · Tensioning with Clamping Mechanisms Indexing, L Blocking with Pins and Ball-Shaped Elements · Mounting, Positioning, Leveling with Scre Clamping and Supporting Elements · Hinging,...

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