ZK7208-3031-A020
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The ZK7208-3031-A020 is a sealed ball screw support bearing with an inner diameter of 40 mm and an outer diameter of 80 mm. Manufactured by Beckhoff as part of the ZK Motor Cables series, it features a contact angle of 60° and is made of bearing steel. The bearing boasts a dynamic load rating of 52.0 kN.
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Product Description:
The Beckhoff ZK7208-3031-A020 serves as a high-performance motor cable developed for servo precision systems.
It functions by integrating electrical connections with a ball screw support bearing. The special design helps systems control precise, fast motions for CNC devices and robotic setups in production lines. The cable system integrates a 40mm inner diameter 80mm outer diameter 21mm wide support bearing with ball screw technology. This design produces a 60-degree contact angle that increases axial load handling while guiding movements precisely. This bearing system uses top-quality bearing steel material at P4 precision level (ISO Class 4) to produce low runout levels and precise rotation performance. At static loads up to 57.5 kN and dynamic loads to 52.0 kN, the component handles robust forces efficiently during intense operations. The bearing's polyamide cage double-seals system defends against external particles and supports longer bearing life. Electrically, the ZK7208-3031-A020 uses a PUR-jacketed motor cable that protects against oil, friction, and mechanical stress over 2 meters.
This sealing unit comes with an 11.0 mm ± 0.2 mm outer diameter built to last even in tight installation spaces. The cable uses B17 connectors, which are straight male and female plugs with a 4+PE+4 pin EtherCAT coding system to transmit control commands at high speeds in connected control systems. The product design includes both face-to-face mounting options to make assembling easier while providing secure joint stability. The motor cable combines integrated signal quality and mechanical stability as the best solution for systems that need both dependable interface connections and reliable movement control. It can be purchased at Wake Industrial with a one-year warranty.
Frequently Asked Questions about ZK7208-3031-A020:
Q: What mechanical components are integrated into the ZK7208-3031-A020?
A: The cable includes a precision ball screw support bearing with a 40 mm inner diameter, 60° contact angle, and P4-class bearing steel for high axial load capacity and accuracy.
Q: What type of electrical cable and connector does the ZK7208-3031-A020 use?
A: It uses a PUR-jacketed motor cable with B17 male and female connectors, featuring a 4+PE+4 pin EtherCAT-compatible configuration for high-speed signal transmission.
Q: What load capacities does the integrated bearing support?
A: The bearing handles static loads up to 57.5 kN and dynamic loads up to 52.0 kN, offering high performance under demanding operational conditions.
Q: How is the ZK7208-3031-A020 protected for long-term use?
A: It includes a polyamide cage with double-seal protection for the bearing, and the PUR cable resists oil, abrasion, and mechanical stress in tight spaces.
Q: What type of applications is the ZK7208-3031-A020 best suited for?
A: It’s ideal for robotic, CNC, and servo-based systems requiring both reliable motion control and integrated high-speed communication via EtherCAT.
