Prism Key 8x7x50 A - Steel Parallel Key for Shaft-Hub Connection

Industrial Applications and Use Cases

Main Description

The Prism Key 8x7x50 A is a standardized steel machine component used to create a precise and durable mechanical connection between a shaft and a hub. Designed according to DIN 6885A, it features a full-profile, rounded geometry that ensures accurate positioning and stable torque transmission in industrial power-transmission systems.

With dimensions 8 mm (width), 7 mm (height) and 50 mm (length), this key fits common industrial keyways, making it suitable for a wide range of machinery and drive assemblies. The extended 50 mm length provides a larger contact surface, improving load distribution and reducing wear during continuous operation.

Manufactured from high-strength steel, the key provides excellent torsional resistance, long service life and consistent performance even under heavy dynamic loads. It is widely used in pulleys, gears, couplings, reducers, drive shafts, bearing housings and other mechanical systems requiring reliable torque transfer. Its standardized dimensions ensure easy installation, replacement and compatibility with both new and existing machines.

Key Advantages

• secure and durable shaft-hub connection

• full compatibility with DIN 6885A

• robust steel construction for high load capacity

• universal industrial fit thanks to standardized dimensions

• quick assembly and simplified maintenance

The Prism Key 8x7x50 A is a proven, cost-effective solution for demanding industrial environments, offering stability, precision and long-term reliability in power-transmission systems.

FAQ - Frequently Asked Questions

Q: What is the purpose of the 8x7x50 A prism key?
A: It ensures precise alignment and stable torque transmission between a shaft and a hub in industrial machinery.

Q: What does DIN 6885A define?
A: The standard specifies the geometry, tolerances and dimensions of rounded, full-profile prism keys of type A.

Q: What are the exact dimensions of the key?
A: Width 8 mm, height 7 mm, length 50 mm.

Q: What material is this key made from?
A: High-strength steel designed for durability and resistance to torsional loads.

Q: Is it suitable for industrial applications?
A: Yes, it is commonly used in drive systems, precision machinery, couplings, gears and power-transmission assemblies.