Paper
Paper manufacturing is one of the most demanding industrial environments. From the corrosive "wet end" to the high-heat dryer and calender sections, every component must withstand extreme speeds, moisture, and thermal stress.
NSK provides more than just high-performance bearings; we offer a total reliability partnership. By combining advanced material science—like our fracture-resistant TL Series—with a dedicated team of on-site industry specialists, we help mills eliminate the root causes of failure and maximize machine uptime.
The NSK Advantage: Industry Specialists
From troubleshooting to on-site training, NSK Industry Specialists bring unparalleled knowledge and experience to the pulp and paper industry. Our experts specialize in paper process,machinery and specific mill applications to help maximize productivity and reduce cost with:
- Bearing failure analysis
- Mill assessments to reduce maintenance cost and increase efficiencies
- Technical support during mill outages for bearing dismantle and installation
- Inventory audits and Mill mapping to better manage bearing needs
- Root cause analysis
- Roll shop inspections
- Training in best practices (class room or hands on)
- Maintenance Techniques
- Maintenance Tools and Mounting
- Installation and Removal Techniques
With over 300 years of combined hands-on experience, our specialists are more than advisors—they are on-site partners who perform Root Cause Failure Analysis (RCFA) and mill mapping to ensure your operation never stops.
Chalenges: Moisture, water ingress and high speeds
Moisture levels are high in the wire section which results in water penetration and bearing corrosion. Water ingress together with the tendency towards even-greater speeds can lead to premature bearing failure and loss of production.
NSK Product Solutions
Engineered to overcome common issues found in various paper manufacturing applications including wire section.
NSKHPS Series
CHALLENGE: Low/Heavy Loads and High Speeds
The paper industry demands highly reliable operation and long service life from its bearings. Press rolls are subject to very heavy loads, while suction press rolls reach very high speeds.
Improper selection can quickly lead to raceway damage.
Spherical roller bearings for extremely high loads and speeds in shoe presses
In collaboration with a renowned supplier of equipment for paper machines, NSK has developed, tested and released spherical roller bearings with optimized internal design which are suitable for high, current and future, line speeds in shoe presses.
OUR INNOVATIONS
Challenge: Very High Temperatures, High Speeds, Heavy Loads
Temperatures up to 150°C are common in the dry end of paper machine. They're subject to high axial forces and tension. Due to these demanding environments, the bearings inner ring can crack, causing machine downtime and loss of production.
TL Series: Engineered for Thermal Stability
Specifically developed for dryer rolls running at extreme temperatures. Combined with special heat treatment, the chemical composition of the steel makes inner and outer rings extremely resistant to wear and cracking.
OUR INNOVATIONS
CHALLENGE: High Temperatures, Extremely High Speeds, Heavy Loads
Calender rolls are subject to heavy loads and high speeds which can rapidly cause fatigue in spherical roller bearings. High heat of the application causes expansion of the bearing inner ring leading to cracks, ultimately resulting in bearing failure.
Spherical roller bearings for extremely high loads and speeds in shoe presses
In collaboration with a renowned supplier of equipment for paper machines, NSK has developed, tested and released spherical roller bearings with optimized internal design which are suitable for high, current and future, line speeds in shoe presses.
OUR INNOVATIONS
TL Series Roller Bearings
Specifically designed for dryer rolls in papermaking machinery operating under extremely high temperature conditions. >>
NSKHPS Series Roller Bearings
NSKHPS series or high performance standard uses state of the art material technology bearings, offering high speed & load ratings. >>
Molded-Oil Bearings
Molded-Oil Bearings are lubricated with NSK’s original oil-impregnated material, Molded-Oil, and are suitable for corrosive and dust-contaminated environments. >>
Deep Groove Ball Bearings
The most common form of rolling bearings, deep groove bearings are used in a variety of applications; particularly those where high speeds and low power loss are required >>
Sealed Spherical Roller Bearings
Promoting a clean working enviroment, these bearings offer long-life performance & reliability under harsh & contaminated conditions. >>
Triple Ring Bearings
Triple ring bearings, two different types of inner/outer bearing combinations. Especially for papermaking machinery. >>
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