08 0220 05 slewing bearing

08 0220 05 Slewing Bearing – Ultra-Compact Crossed Roller Solution for Precision Motion

The 08 0220 05 Slewing Bearing is a single-row crossed cylindrical roller slewing ring engineered for ultra-compact, high-precision rotary applications. With an outer diameter of 300 mm, inner diameter of 140 mm, and height of only 52 mm, this gearless bearing weighs just 16 kg yet delivers 3–4 times the rigidity of equivalent-sized ball-type slewing bearings. Manufactured from 50Mn or 42CrMo forged and heat-treated steel, the raceway achieves HRC 55–62 hardness. NBR double-sided seals protect against contamination, while the Nylon PA66 cage ensures smooth roller spacing. Available in P0, P5, or P6 precision grades with optional preload design, the product operates reliably from -25°C to +70°C (extended range -40°C to +150°C available).

Why Choose the 08 0220 05 Slewing Bearing?

Superior Rigidity Through Crossed Roller Geometry

The product can resist axial, radial, and tilting moment stresses in a compact construction due to line contact throughout the raceway width from the crossed cylindrical roller arrangement. This design reduces ball bearing elastic deformation, making it perfect for micron-level positioning precision.

A Gearless Design for Direct Drive Flexibility

This Rollix 08 Series gearless bearing works with frameless torque motors, direct-drive systems, and external ring gear assemblies. The removal of integrated teeth lowers weight and permits torque and speed-specific driving options.

Precision Grades for High-demand Applications

The standard P0 grade is suitable for general industrial application, while P5/P6 with preload design meets the strict requirements of cross roller bearing for CT scanner gantries, CNC rotary table indexing, and robotic arm joint articulation. Zero axial clearance and reproducible placement are achieved using preload.

Technical Specifications

08 Series Model Range

The 08 Series includes 11 standard models spanning 300 mm to 1144 mm outer diameter, supporting applications from compact robotics to heavy-duty turntables:

⭐ 08 0405 05 is a special variant: despite its higher model number, it features the thinnest profile in the entire 08 Series (46 mm height) and the highest bore ratio (ID/OD = 71%) among all thin-section models (H ≤ 60 mm) — engineered for large-bore precision turntables where through-hole clearance and compact vertical space matter most.

Cross-Series Compatibility

Many 08 Series housings share dimensions with the 06 (external gear) and 07 (internal gear) series, enabling flexible drive configurations:

Need the same size with external gear? Explore our 06 Series for identical envelope dimensions with integrated external teeth for simplified pinion drive systems.

Application Fields

The compact footprint and high rigidity of the 08 0220 05 slewing bearing make it suitable for precision motion control across diverse industries:

Whether you need a crossed roller slewing bearing for robot articulation, slewing ring for CNC rotary table indexing, cross roller bearing for CT scanner gantries, slewing bearing for robotic arm joint connections, crossed roller slewing ring for radar antenna positioning, slewing bearing for aerospace turntable testing, cross roller slewing ring for medical imaging equipment, slewing bearing for military turret aiming, crossed roller bearing for semiconductor wafer alignment stages, slewing ring for telescope mount tracking, cross roller bearing for wind turbine pitch control, slewing bearing for ship crane compact installations, crossed roller slewing ring for indexing table divisions, slewing bearing for welding positioner cross roller rotation, or cross roller slewing ring for precision turntable applications—the 08 0220 05 delivers proven performance.

Certification

FAQ

Q: What makes crossed roller bearings more rigid than ball bearings?

A: Crossed cylindrical rollers provide line contact instead of point contact, distributing loads across a larger surface area. This increases stiffness by 3–4 times compared to same-size ball slewing bearings, reducing deflection under load.

Q: Can I mount external gears to the 08 0220 05?

A: The 08 Series is gearless by design. For applications requiring integrated teeth, consider the 06 Series external gear models that share compatible housing dimensions.

Q: What is the lead time for the product?

A: The In Stock product ship within 7-15 days from stock. Custom setups take 4-6 weeks, depending on intricacy.

Contact Us

Need assistance selecting the right 08 0220 05 slewing bearing for your application? Contact our engineering team at mia@hgb-bearing.com to discuss load requirements, precision grades, or custom configurations. Request technical drawings or coordinate a sample evaluation today.