Product Description
Crown CR 70680 is an OEM pin-type flexible coupling designed for electric lift truck applications. Construction includes cast iron half bodies and elastomeric neoprene buffer pins for extended torque rating and misalignment compensation. Supports maximum 249,400 Nm torque and 2,611 kW at 100 RPM. It is compatible with Crown lift trucks and built for heavy-duty, shock-load service. No OEM cross-reference part numbers available.
Specifications
Material
| Housing Material | Cast iron per manufacturer specification |
Part Numbers
| OEM Part Number | CR 70680 |
Frequently Asked Questions
Q: What is the CR 70680 flexible coupling used for?
A: The CR 70680 is a Crown OEM pin-type flexible coupling designed for electric lift truck drive and power transmission systems. It accommodates shaft misalignment and absorbs shock loads through elastomeric neoprene buffer pins.
Q: What are the torque and power ratings of the CR 70680?
A: The CR 70680 supports a maximum torque rating of 249,400 Nm and a power rating of 2,611 kW at 100 RPM, making it suitable for heavy-duty shock-load service in electric lift truck applications.
Q: What materials does the CR 70680 use in its construction?
A: The CR 70680 features cast iron half bodies paired with elastomeric neoprene buffer pins. This combination provides durability, misalignment compensation, and extended service life in industrial environments.
Q: Is the CR 70680 compatible with non-Crown lift trucks?
A: The CR 70680 is a Crown-specific OEM coupling. Compatibility with other brands requires matching shaft sizes, bore specifications, and torque requirements. No documented cross-reference parts are available.
Q: What maintenance is required for the CR 70680 coupling?
A: Periodic inspection of neoprene pins for wear or deterioration is recommended. The cast iron construction resists corrosion in industrial settings. Replace the coupling if neoprene shows hardening, cracking, or permanent deformation.
Q: Can the CR 70680 handle continuous shock loads?
A: The CR 70680 is engineered specifically for heavy-duty, shock-load service. The neoprene buffer pins absorb and dampen shock loads, extending coupling and drivetrain component lifespan.