LEW Technical Information
Product type
• 4 race rings with ground raceways
• Plastic cage with rollers
• Franke bearing elements of the type LEW are suitable for medium rotary speeds and accuracies. They impress with their smooth running, high stiffness and compact installation space. The crosswise arranged rollers absorb the same high loads from all directions. Bearing elements type LEW are robust and insensitive to shocks and vibrations.
Characteristics
• Maximum possible integration capacity
• High stiffness
• Greatest possible flexibility of preload, runability and diameter ranges
• Bearing elements type LEW consist of two inner and two outer races and a plastic cage with rollers. The race rings are split in one place to compensate for temperature expansion factors. They have balancing properties in demanding types of stress. LEW are usually installed without backlash. Depending on the requirements, the preload can be adjusted individually.
Diameter Range
Infinitely variable from 400 to 1200 mm
Mating structure
The built-in bearing element determines the load capacity of the overall construction. The enclosing construction can therefore consist of alternative materials such as steel, aluminum, plastic. Planarity and concentricity (see diagram on left) are largely defined by the enclosing parts. Increased manufacturing accuracy can further improve these values
Technical Details
• Material: Race rings: 67SiCr5, rollers: 100Cr6, cage: PA12
• Temperature in use: –30 °C bis +80 °C, briefly up to +100 °C
• Circumferential speed: Max. 4 m/s
• Lubricant grease: Shell Gadus S3 V220
• Lubricant schedule: Contact us for further information
•Tolerance details: Contact us for further information
For additional information on bearing selection, calculation, mounting and setting contact us.
Types of Bearing Elements
LEL Ground Raceways
• 4 Race rings with ground raceways
• Plastic ball cage with retained balls
• Meet high standards in terms of runnability and accuracy
• Hardened and CNC-ground raceways, along with the ideal geometric adjustment of ball and raceway radius, lend them outstanding bearing properties
• Permits the greatest possible freedom of bearing design
• The standard mounting space is between 5.9 mm and 20.9 mm
• Race ring thickness of up to 20 mm and bearing sizes up to 50 mm are possible to meet special requirements
LER Rectangular Profile
• 4 race rings with profiled raceways
• Plastic ball cage with retained balls
• Designed for medium rotational speeds and accuracies
• Run smoothly, possess high dynamism and require just compact mounting space
• Straight contact surface ensures simple integration in the mating structure and also a high rigidity
LEW Cross Roller Bearing
• 4 race rings with ground raceways
• Plastic cage with rollers
• Suitable for medium rotary speeds and accuracies
• Smooth running, high stiffness and compact installation space.
• Crosswise arranged rollers absorb the same high loads from all directions.
• Robust and insensitive to shocks and vibrations.
Contact us
For more information or a no obligation quote please get in touch below.
EXPERIENCE
With a collective knowledge and experience of over 30 years in engineering industry, we work to adapt, create and innovate, to enable us to deliver bespoke engineering solutions to meet your requirements.
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From our Lancashire headquarters we offer a one stop shop for all your linear and rotary requirements for both existing applications and new product innovations.
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