Crossed Roller Slewing Bearing XI120288‑N‑ZT

XI120288‑N‑ZT Crossed Roller Slewing Bearing – Compact & High-Load Rotary Solution

The XI120288‑N‑ZT is a crossed roller slewing ring bearing from INA/Schaeffler, engineered for high-precision rotary applications needing compact design and superior load capacity.

Technical Specifications

Inner bore (dᵢ): 216 mm

Outer diameter (Dₐ): 340 mm

Bearing width (H): 38 mm

Inner ring height (h): 33 mm

Centering bore diameter (dₐ ZT): 285 mm

Inner ring centering bore (dᵢ ZT): 338 mm

Ring width (b): 34 mm

Fixing holes: 20 in inner & 20 in outer rings (Ø9 mm)

Weight: approx. 12 kg

Performance Ratings

Basic dynamic axial load (Cₐ): 136 kN

Basic static axial load (C₀ₐ): 315 kN

Basic dynamic radial load (Cᵣ): 97 kN

Max radial load before friction lock: 35 kN

Tooth fatigue and fracture limits: 12.3 kN and 17.8 kN

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Key Features

Crossed cylindrical roller design: Supports high radial, axial, and moment loads simultaneously, ideal for compact rotary systems

Internal centering (ZT): Enables precise shaft alignment and easy assembly.

Sealing options available: Ensures protection and grease retention in dusty or industrial environments.

High stiffness & accuracy: Minimizes deflection for smooth rotational performance.

Robust 20-hole bolt pattern: Allows secure mounting in heavy-duty equipment.

Typical Applications

Robotic arms and automated machinery

Rotary tables in processing and assembly lines

Turntables in medical imaging (e.g., CT, MRI)

Solar trackers and surveillance platforms

Why Choose the XI120288‑N‑ZT?

The XI120288‑N‑ZT offers a compact 340 mm diameter while delivering impressive load ratings — up to 136 kN dynamic axial and 97 kN dynamic radial. Its crossed roller structure supports combined load scenarios with high rigidity and accuracy. The internal centering bore allows seamless integration with shafts, and a 38 mm bearing width maintains a low-profile installation—perfect for space-constrained rotational equipment.

This bearing's design ensures long-lasting performance with low maintenance, making it suitable for industrial automation, cleanroom systems, medical devices, and more.