Series 11
Crossed roller slewing bearing
Rollers crossed at 90 degrees give a stiffer ring: less deflection under the same moment, and a backlash figure that stays put over life.
Technical data
Specification range
| Parameter | Range | Remarks |
|---|---|---|
| Outside diameter | 200 – 3,000 mm | Larger on request |
| Section height | 70 – 180 mm | Higher than four-point contact |
| Axial load rating | to 2,400 kN | Static |
| Tilting moment rating | to 1,100 kNm | Static, high stiffness |
| Runout | to 0.05 mm | On the mounting face |
| Gear | None / external / internal | Module 4 – 12 |
| Clearance | Preloaded standard | Negative clearance for stiffness |
Structure
What the structure gives you
Cylindrical rollers alternate at 90 degrees in a single raceway. Line contact instead of point contact means much higher stiffness, so the ring deflects less and the tool or the sensor stays where it was commanded.
- Line contact gives high radial and moment stiffness
- Low deflection under cutting or positioning load
- Preload set at assembly, measured before shipping
- Good choice for machine tools and rotary tables
- Cage-guided rollers for quiet running
Typical equipment
Machine tool rotary tables, robot wrists and bases, indexing tables, measuring equipment, medical imaging gantries and antenna pedestals.
Options you can add
- Custom preload with a measured starting torque
- Seal set for clean-room use
- Coated raceway for corrosion resistance
- Integrated encoder scale mounting face
Send a drawing for the Series 11
Outside diameter, bore, mounting holes, gear module and the load case are enough for a quote. If you are replacing an existing ring, the old part number also works.