---
title: "ZK 120 | Bevel gearbox"
url: "https://zimm.com/product/zk-120-bevel-gearbox/"
datePublished: "2025-09-22T12:31:48+00:00"
dateModified: "2026-10-14T10:36:34+00:00"
author: ZIMM GmbH
lang: en
canonical: "https://zimm.com/product/zk-120-bevel-gearbox/"
markdown: "https://zimm.com/ai/product/zk-120-bevel-gearbox.md"
image: "https://zimm.com/wp-content/uploads/2025/09/ZK-bevel-gearboxes.png"
serie: ksz
product_title: "ZK 120 | Bevel gearbox"
categories: "ZK Bevel gearboxes, Bevel gearboxes"
documents: yes
---

## Technical data



Size: 1.20, ZK Bevel gearbox, Efficiency: 0.97, Weight: 13.6 kg, Housing material: Cast iron, corrosion-protected, Shaft material: Heat-treated steel, Lubrication: Mineral lubricating oil, Max. drive: 3000 rpm, Max. drive, shaft upward: 1700 rpm (shaft D; x:1); 1700 rpm (shaft A, C; 1:1); 3000 rpm (shaft A,C; 2:1 / 3:1), Seals: NBR, Shaft seals: Form A, Drive keys: DIN 6885-1 Form A, Please note: Please note:1. For type 1.1 / 1.2 / 1.3 / 1.3-HW2. Relevant for orientation vertical shaft observe speed limitation3. Alternative materials on request4. Form AS for high dirt loads on request

## Documents

- [ZK Bevel gearboxes | Design](https://zimm.com/wp-content/uploads/2026/03/Design.pdf)
- [ZK Bevel gearboxes | Size 120 | Torques and side forces](https://zimm.com/wp-content/uploads/2026/02/120-Torques-and-side-forces.pdf)

## Quality

ZIMM ZK 120 | Bevel gearbox are manufactured at the headquarters of ZIMM GmbH in Lustenau. Development and manufacture are part of the ISO 9001:2015-certified processes for industrial bevel gearboxes.