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KO Paper-machine bearing positions, heat, moisture, lubrication, and displacement.
Press Roll Bearing Selection
Press Roll bearing selection starts with the machine position and complete existing designation. Check load direction, speed, temperature, lubrication, contamination, fits, misalignment, and failure history for that position.
Equipment and Bearing Positions
- Paper machine press rolls
- Wet-end press sections
- Support rolls
- Large roll bearing housings
Operating Conditions
- High nip load and misalignment
- Water and pulp contamination
- Shutdown-sensitive replacement planning
- Lubrication method and cleanliness
- Shaft or housing misalignment
- Speed and temperature range
Failure Risks
- Incorrect fit or clearance can reduce operating clearance and raise bearing temperature.
- Contamination or unsuitable lubrication can damage raceways, rollers, and cages.
- Misalignment, shaft deflection, looseness, or overload can shorten service life.
Configuration Matrix
| Position | Operating condition | Configuration to confirm |
|---|---|---|
| Paper machine press rolls | High nip load and misalignment | Model, load rating, bore, cage, clearance, fits, and lubrication |
| Wet-end press sections | Water and pulp contamination | Open or sealed arrangement, contamination control, speed, and temperature |
| Support rolls | Shutdown-sensitive replacement planning | Locating/floating role, misalignment, shoulders, mounting, and removal access |
Selection Checks
- Confirm the complete bearing marking, bearing position, shaft and housing arrangement, and locating or floating role.
- Check radial and axial load, speed, temperature, contamination, lubrication, fits, clearance, cage, and misalignment together.
- Include failure history, quantity, destination, required timing, and inspection or compliance files.
Related Products and Technical References
Use these pages to compare bearing construction, model data, internal clearance, suffixes, and replacement constraints for this equipment.
Dryer-section bearing positions, temperature, lubrication, and axial displacement.
Wide low-section bearings for large-shaft paper-machine positions.
Checks for paper-machine bearing heat, lubrication, fit, and contamination.
Technical and Quality References
Information to Record
Record the fields below before changing the bearing. They help separate a bearing symptom from a machine, mounting, lubrication, or contamination problem.
- press section
- roll position
- failed bearing model
- suffix/clearance
- shaft size
- load condition
- water or pulp exposure
- lubrication condition
- quantity
- shutdown window
Discuss a Press Roll Bearing Requirement
Send the equipment position, current bearing marking, operating conditions, quantity, destination, and required documents. We will confirm the proposed configuration, supply options, and lead time in the quotation.