The GRANIT 8×7×50 mm parallel key is a standardized machine element designed for secure torque transmission between shafts and hubs. With its extended length compared to shorter variants, it provides increased contact area and stability in demanding applications.
Key Specifications
- Brand: GRANIT
- Standard: DIN 6885
- Dimensions: 8 × 7 × 50 mm (W × H × L)
- Material: Steel (C45 + C)
- Weight: 24 g
- Box Quantity: 50 pcs
Build & Material
Manufactured from C45 steel, this key ensures:
- High mechanical strength
- Good wear resistance
- Reliable performance under load
The precision-machined shape with rounded ends allows for accurate seating in keyways, minimizing play.
Performance
- Transfers rotational force efficiently
- Provides stronger engagement due to its longer length
- Reduces risk of slipping in higher-load applications
Ideal where extra stability is needed compared to shorter keys.
Applications
- Gearboxes and drive systems
- Agricultural and industrial machinery
- Motors, pulleys, and couplings
Ease of Use
- Standard DIN size for compatibility
- Simple installation in matching keyways
- Suitable for maintenance and replacement tasks
Value for Money
Supplied in bulk, this key offers cost-effective performance, especially for workshops and industrial users requiring frequent replacements.
Pros
- Durable C45 steel construction
- Longer length for improved load distribution
- Standardized DIN 6885 fit
- Reliable torque transmission
Cons
- Must match exact shaft/keyway dimensions
- Over-dimensioning may not fit all applications
Final Verdict
The GRANIT 8×7×50 mm parallel key is a robust and dependable solution for mechanical connections requiring extra holding strength. A small but vital component for ensuring efficient and secure power transmission in machinery.
