Installation Guide for Cross Roller Bearings

Cross roller bearings are precision components widely used in robotics, automation, and other high-precision applications. Proper installation is critical to ensure optimal performance and longevity. Follow these steps for a smooth installation process:

1. Pre-Installation Inspection

Before installing the bearing:

• Thoroughly clean the shaft, bearing housing, or other mounting components to remove oil, dirt, or debris.
• Inspect all parts for burrs, rough edges, or any irregularities that could affect installation.

2. Installing the Bearing

• Cross roller bearings are thin-walled and prone to tilting during installation. To avoid this:
  • Maintain a level position while inserting the bearing into the housing or onto the shaft.
  • Use a plastic hammer to gently and evenly tap the bearing into place.
  • Continue until you hear a clear sound confirming the bearing is fully seated against the reference surface.

3. Mounting the Fixed Flange

1. Alignment
   Place the fixed flange on the bearing and gently shake it to align with the bolt holes.

2. Bolt Insertion
   Insert the fixing bolts into the holes. Hand-tighten each bolt to ensure no misalignment causes resistance during tightening.

3. Tightening Sequence
   Tighten the bolts gradually in 3-4 stages, following a diagonal sequence. For split inner or outer rings, slightly rotate the entire ring to correct any misalignment before final tightening.

Precautions for Optimal Performance

1. Special Design Features

• Split inner or outer rings are pre-assembled using special rivets, bolts, or nuts. Do not disassemble them, as incorrect reassembly can impair rotational performance.
• Slight deviations in concentricity may occur. Before installation, loosen the fixing bolts, adjust alignment, and retighten.

2. Avoid Excessive Force

• Do not apply force directly to the connecting rivets or bolts during installation or removal.
• Ensure the fixed flange applies even pressure to the inner and outer rings without over-tightening, which could deform the bearing.

3. Handle with Care

• Dropping or impacting the bearing can cause internal damage, even if no visible marks are present. Always handle with care.

4. Lubrication Requirements

• Our cross roller bearings are pre-filled with high-quality lithium-based grease, eliminating the need for immediate lubrication. However:
  • Regular lubrication is essential due to the bearing's compact design and rolling contact structure.
  • Use the provided lubrication holes and oil grooves to replenish grease every 6-12 months, depending on usage frequency.
  • Overfilling with grease may temporarily increase rotational torque, but excess grease will flow out, restoring normal operation.
  • For ultra-thin models, ensure the bearing housing has an oil groove for proper lubrication.

5. Prevent Contamination

• Keep the bearing free from dust, metal chips, or other contaminants. If foreign particles enter, clean the bearing with white kerosene and reapply grease.

6. Special Operating Conditions

• For temperatures above 80°C or environments where coolant may enter the bearing, consult our team for specialized solutions.
• In environments with frequent vibrations, clean rooms, vacuums, or extreme temperatures (low or high), contact us for custom recommendations.

Why Choose Our Cross Roller Bearings?

Our cross roller bearings are engineered for high precision, compact designs, and exceptional durability. They are ideal for modern robotics and automation systems, offering reliable performance in demanding applications. Whether you're working on industrial robots, medical devices, or aerospace equipment, our bearings deliver unmatched quality and reliability.

For further assistance or to discuss your specific requirements, feel free to contact us.