Cylindrical Roller Bearings for Industrial Applications
TEDIN supplies single-row, double-row, four-row and full complement cylindrical roller bearings, with precision and custom options for industrial equipment.
Cylindrical Roller Bearings for Radial Load Support
Cylindrical roller bearings use line contact between the rollers and raceways to support high radial loads. Bearing performance depends on the internal design, lubrication and operating conditions.
Cylindrical Roller Bearing Series
Compare the designs below by load capacity, radial stiffness and mounting requirements. Visit each series page for specifications and selection support.
Single Row Cylindrical Roller Bearings
Support radial loads in compact shaft arrangements. N and NU designs allow axial displacement; NJ and NUP provide axial location in one or both directions.
Common uses: Electric motors, gearboxes and industrial pumps.
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Double Row Cylindrical Roller Bearings
Two roller rows provide high radial stiffness. NN and NNU designs are available with cylindrical or tapered bores, depending on the mounting requirements.
Common uses: Precision machine tool spindles and selected rolling mill positions.
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Four Row Cylindrical Roller Bearings
Four roller rows provide high radial load capacity for roll-neck assemblies. These bearings typically work with separate bearings for axial load support.
Common uses: Roll-neck positions in cold and hot rolling mills.
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Full Complement Cylindrical Roller Bearings
A cageless design accommodates more rollers for high radial load capacity. Roller-to-roller contact generally limits speed compared with caged designs.
Common uses: Planetary gearboxes, lifting sheaves and material handling equipment.
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Custom Cylindrical Roller Bearings
Non-standard dimensions, ring structures, cages and precision requirements are reviewed from drawings, samples or existing bearing numbers.
Common uses: OEM projects, equipment rebuilds and non-standard replacements.
View Custom BearingsDesign, Manufacturing & Inspection
Explore the design features, material options and quality controls that support your cylindrical roller bearing requirements.
Roller Profile Design
Line contact supports high radial loads. Roller profiles help reduce edge stress, with geometry selected to suit load distribution, shaft deflection and alignment.
Precision & Accuracy
Precision grinding controls raceway geometry and surface finish. P5, P4 and P2 accuracy requirements are assessed according to bearing size, design and application.
Separable Ring Designs
Many designs allow a ring to be mounted separately from the roller assembly. Ring and rib arrangements determine axial location and displacement capability.
Materials & Cages
Steel grade and heat treatment are specified for the application. Brass, steel or polymer cage selection considers bearing design, speed, temperature and lubrication.
Quality Inspection
Dimensions, running accuracy and clearance are checked against specifications. Vibration and noise testing, plus report requirements, form part of the agreed inspection scope.
Custom Engineering
Drawings and operating data guide the review of non-standard dimensions, ring features and clearance. Manufacturing feasibility is assessed before specifications are confirmed.
Application & Bearing Selection
Compare common cylindrical roller bearing series, operating conditions and selection priorities across industrial applications.
| Application | Suggested Series | Load Characteristics | Operating Conditions | Selection Priorities |
|---|---|---|---|---|
| Electric Motors | Single-row (N, NU, NJ, NUP) | Rotor and drive-related radial loads | Continuous rotation; thermal shaft expansion | Axial location, expansion allowance, operating clearance and lubrication |
| Mining & Construction | Single-row / Double-row | Heavy radial loads; shock loading | Variable duty; dust and contamination exposure | Load capacity, housing rigidity, external sealing and lubricant supply |
| Machine Tool Spindles | Precision double-row (NN, NNU) | Radial cutting loads; high stiffness requirements | Precision rotation; thermally sensitive operation | Accuracy, mounted clearance, thermal growth and separate axial support |
| Pumps & Compressors | Single-row | Radial loads; machine-dependent axial thrust | Continuous duty; speed and temperature variation | Axial load allocation, shaft fits, clearance and lubrication |
| Rolling Mills | Four-row (FC, FCD where applicable) | Very heavy radial rolling loads | Frequent roll changes; scale and coolant exposure | Roll-neck fits, lubrication, sealing and separate axial locating bearings |
| Industrial Gearboxes | Single-row / Double-row | Radial gear forces; gear-dependent axial loads | Variable speed, torque and oil temperature | Bearing life, shaft deflection, axial location and thermal expansion |
Selection note: These are common starting points, not fixed recommendations. Confirm dimensions, load ratings, permissible speed and accuracy for the selected bearing. Scroll horizontally if the table extends beyond the available width.
Cylindrical Roller Bearing Applications
Cylindrical roller bearings provide radial support across industrial equipment. The appropriate series depends on load, speed, stiffness and axial locating requirements.
Electric Motors
Single-row bearings support rotor and drive-related radial loads in motors and generators. N and NU designs can provide non-locating support that accommodates axial shaft expansion.
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Mining & Construction
Selected single-row and double-row designs provide radial support in mining drives and heavy equipment. Shock loading, shaft deflection, sealing and lubrication are key selection considerations.
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Machine Tool Spindles
Precision NN and NNU bearings provide radial stiffness and running accuracy for CNC and grinding spindles. Mounted clearance, thermal growth and separate axial support require coordinated design.
Explore Spindle Bearings
Pumps & Compressors
Cylindrical roller bearings provide radial shaft support in selected pump and compressor arrangements. Axial thrust, operating clearance and lubricant supply must be evaluated for each machine.
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Rolling Mills & Metallurgy
Four-row cylindrical roller bearings support roll necks under heavy radial rolling loads. Hot and cold mills require suitable fits, sealing, lubrication and separate axial locating bearings.
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Industrial Gearboxes
Single-row and double-row bearings support shafts against radial gear forces in reducers and industrial transmissions. Selection considers shaft deflection, axial forces, bearing life and thermal expansion.
Explore Gearbox BearingsQuality Control & Inspection
Inspection requirements are defined around the bearing specification, from dimensional checks and material verification to final acceptance and documentation.
01 / Dimensional & Geometric Inspection
Ring dimensions, geometric tolerances and running accuracy are checked against the bearing specification. Measurement methods are selected for the feature and tolerance being verified.
02 / Surface Integrity & NDT Requirements
Surface condition forms part of the inspection scope. Where non-destructive testing is required, the method, sampling plan and acceptance criteria are agreed before production.
03 / Material & Heat-Treatment Verification
Steel grade and heat-treatment requirements are defined in the manufacturing specification. Material records, hardness checks and any required microstructure examination support verification.
04 / Process Checks & Final Acceptance
In-process checks monitor specified manufacturing characteristics. Final acceptance covers the agreed inspection items, with report and batch identification requirements confirmed for the order.
Frequently Asked Questions
Practical answers about bearing arrangements, axial loads, internal clearance and custom inquiries.
What is the difference between NU, NJ and NUP cylindrical roller bearings?
NU: two integral flanges on the outer ring and none on the inner ring, allowing relative axial displacement between the shaft and housing in both directions. NJ: two outer-ring flanges and one inner-ring flange, providing axial location in one direction. NUP: two outer-ring flanges, one integral inner-ring flange and one loose flange ring, providing axial location in both directions. All three primarily support radial loads.
Can cylindrical roller bearings support axial loads?
Axial load capability depends on the flange arrangement and the specific bearing design. Standard N and NU bearings do not provide axial location on their own. NJ designs can accommodate axial loads in one direction; NUP and NH arrangements can accommodate them in both directions within their specified limits. Permissible axial load depends on lubrication, speed, temperature and roller-end/flange contact. Significant thrust loads may require a separate thrust bearing or another bearing arrangement.
How do I choose CN, C3 or C4 internal clearance?
CN is the normal radial internal clearance group; C3 provides greater clearance than CN, and C4 greater than C3. Selection should consider interference fits, temperature differences between the rings, load and the required operating clearance after mounting. Higher speed, temperature or load does not automatically require C3 or C4. Confirm the clearance range and suitability for the specific bearing and operating conditions.
Can you supply custom cylindrical roller bearings?
TEDIN can review custom cylindrical roller bearing requirements based on drawings and operating conditions. Potential options include non-standard dimensions, ring configurations, internal clearance and cage materials. Requested accuracy classes, materials, heat treatment and surface treatments are assessed individually. Availability, inspection requirements and lead time are confirmed after technical review.
What information should I provide for a quote?
For an existing bearing, provide the full designation including suffixes, quantity and delivery destination. For a custom bearing or selection review, also provide a drawing or main dimensions, application, radial and axial loads, speed, operating temperature, lubrication, shaft and housing fits, and any clearance or accuracy requirements. If some details are unknown, send the available information so the remaining requirements can be clarified.
Related Bearing Products
Tapered Roller Bearings
Support combined radial and axial loads in gearboxes, wheel assemblies and heavy industrial machinery.
Explore Tapered Roller Bearings
Angular Contact Ball Bearings
Support combined radial and axial loads in machine tool spindles, pumps and other precision rotating equipment.
Explore Angular Contact Ball Bearings
Thrust Roller Bearings
Provide axial load support in gearboxes, lifting equipment and other heavy-duty industrial applications.
Explore Thrust Roller Bearings
Spherical Roller Bearings
Accommodate heavy radial loads, axial loads in both directions and shaft misalignment within specified limits.
Explore Spherical Roller BearingsNeed Help Selecting Cylindrical Roller Bearings?
Send your bearing designation, drawing or main dimensions, quantity and operating conditions. Include radial and axial loads, speed, internal clearance and accuracy requirements where available. TEDIN can review your request for standard, replacement or custom cylindrical roller bearings and help confirm a suitable solution.