Technical Specifications

The numerical values and product identifiers are based on the technical catalogue information previously identified for this designation. They should be verified against the current Schaeffler product record when finalising engineering specifications.

Full Complement Cylindrical Roller Construction

INA SL045020-D-PP-2NR features two rows of cylindrical rollers positioned between the inner and outer bearing rings.

Unlike conventional cylindrical roller bearings, the full complement design does not use a cage to separate the rolling elements.

This arrangement allows more rollers to fit within the available bearing space, increasing radial load-carrying capacity.

Principal construction features include:

• Two rows of cylindrical rollers.

• Full complement arrangement without a cage.

• Three guiding ribs on the inner ring.

• Central guiding rib on the outer ring.

• Contact seals on both sides.

• Retaining ring grooves on the outer ring.

• Modified outer ring profile.

Compared with caged cylindrical roller bearings, full complement bearings generally provide higher load capacity within comparable dimensions but have lower permissible operating speeds.

INA SL045020-D-PP-2NR – Designation Explained

The suffix 2NR refers to retaining rings used for axial location of the bearing in the housing.

It does not indicate two additional bearing seals.

Locating Bearing – Radial and Axial Loads

INA SL045020-D-PP-2NR is designed as a locating bearing.

It can accommodate:

• High radial loads.

• Axial loads acting in one direction.

• Axial loads acting in the opposite direction.

Axial forces are transmitted through the bearing ribs and roller end faces.

The permissible axial load depends on lubrication, operating speed, temperature and the internal bearing geometry.

The basic dynamic radial load rating of 330 kN must not be interpreted as the permissible axial load.

Axial load limits should be evaluated according to the manufacturer's calculation methods and the actual application conditions.

Dynamic and Static Load Ratings

The basic dynamic load rating is used in bearing fatigue life calculations.

The basic static load rating describes the bearing's resistance to permanent deformation under static loading.

These catalogue values do not represent universal maximum permissible loads for every installation.

The actual bearing selection must account for load distribution, operating speed, lubrication, temperature and required service life.

PP Contact Seals – Double-Sided Protection

The suffix PP indicates contact lip seals fitted on both sides of the bearing.

Their main functions include:

• Limiting the ingress of contaminants.

• Helping retain lubricant within the bearing.

• Protecting the rolling elements and raceways.

• Supporting operation in industrial environments.

Contact seals do not provide unlimited protection against pressurised water, immersion or chemically aggressive media.

The suitability of the sealing system depends on operating conditions and the surrounding equipment design.

2NR Retaining Rings

The 2NR configuration is supplied with two separate WRE retaining rings.

These rings engage with grooves on the outer ring and enable axial location within a suitably designed housing.

Their functions include:

• Supporting axial positioning of the outer ring.

• Simplifying certain housing arrangements.

• Providing mechanical retention where the housing design permits.

Before installation, verify that both retaining rings are included and correctly positioned.

The housing groove and support geometry must correspond to the bearing manufacturer's specifications.

Modified Outer Ring Profile – Suffix D

The suffix D identifies a modified outer ring profile.

This design modification relates to the geometry of the bearing's outer ring, including optimised transitions and supporting surfaces.

The exact significance of the modification should be assessed using the applicable Schaeffler technical drawing.

Bearings with different design suffixes should not be considered automatically interchangeable, even when their principal dimensions are identical.

Normal Radial Internal Clearance – CN

The standard INA SL045020-D-PP-2NR configuration is specified with normal radial internal clearance.

Internal clearance affects bearing operation after installation.

Important factors include:

• Shaft interference fit.

• Housing fit.

• Temperature differences between the rings.

• Thermal expansion.

• Operating load.

• Bearing speed.

The effective operating clearance may differ from the initial unmounted clearance.

A bearing with normal clearance should not automatically be replaced by a C3 or another clearance variant without checking the application requirements.

Lubrication and Limiting Speed

The identified catalogue limiting speed for grease lubrication is 1300 r/min.

Full complement cylindrical roller bearings have additional contact between adjacent rollers, making adequate lubrication particularly important.

Relevant operating factors include:

• Lubricant viscosity.

• Operating temperature.

• Radial and axial loading.

• Heat dissipation.

• Lubricant supply.

• Contamination levels.

The limiting speed is not automatically permissible under every loading condition.

For demanding applications, the lubrication method and operating speed should be evaluated according to Schaeffler recommendations.

Industrial Applications

Double-row full complement cylindrical roller bearings of the INA SL04 series may be used in machinery requiring high radial load capacity and axial shaft location.

Typical applications for this bearing category include:

• Rope pulleys and sheave assemblies.

• Industrial material handling equipment.

• Heavy-duty machinery.

• Lifting mechanisms.

• Highly loaded mechanical drives.

• Rotating assemblies requiring axial location.

• Industrial roller systems.

These are general applications of this bearing category, not a confirmed equipment compatibility list for the exact INA SL045020-D-PP-2NR designation.

Installation Guidelines

Before installing INA SL045020-D-PP-2NR, inspect the shaft, housing and bearing support surfaces.

Recommended procedures include:

• Verify the complete bearing designation.

• Check shaft and housing dimensions.

• Confirm the required mounting fits.

• Clean all mounting surfaces.

• Inspect the bearing for transport or handling damage.

• Protect the contact seals during installation.

• Apply mounting forces only to the appropriate bearing ring.

• Avoid transmitting installation forces through the rollers.

• Install both retaining rings correctly.

• Verify axial location and alignment.

• Ensure suitable lubrication conditions.

Incorrect installation may damage the raceways, increase operating temperature or reduce bearing service life.

INA SL045020-D-PP-2NR vs INA SL045020-D-PP

The presence of retaining rings is relevant when specifying the complete bearing assembly and designing its axial location.

Matching principal dimensions alone does not establish full interchangeability.

Comparative Bearing Designations

The following designations may appear in industrial cross-reference catalogues:

• SKF NNF 5020 ADB-2LSV

• NACHI E5020NRNT

• IKO NAS5020UUNR

These references should be treated as potential comparison candidates, not confirmed direct replacements.

Before selecting an alternative, verify the complete dimensions, internal construction, sealing arrangement, retaining rings, internal clearance, load ratings and operating limitations.

Common Causes of Bearing Failure

Insufficient lubrication: May increase friction, temperature and rolling contact wear.

Contamination: Foreign particles can damage the rollers and raceways.

Incorrect mounting fits: May cause ring creep, excessive interference or undesirable changes in internal clearance.

Misalignment: Can produce uneven loading and localised contact stresses.

Retaining ring installation errors: May compromise the intended axial location of the bearing.

Excessive operating speed: May increase friction and heat generation, particularly in full complement designs.

Seal damage: Can allow contamination ingress or lubricant loss.

Alternative Product Designations

• INA SL045020-D-PP-2NR

• INA SL045020 D PP 2NR

• INA SL045020-D-PP-2NR 100x150x67 mm

• INA Double Row Cylindrical Roller Bearing SL045020-D-PP-2NR

• INA Full Complement Roller Bearing 100x150x67 mm

• INA SL045020 Sealed Cylindrical Roller Bearing

• Schaeffler INA SL045020-D-PP-2NR

• INA SL045020-D-PP-2NR Locating Bearing

The complete designation should be preserved in procurement documentation to avoid confusion with other SL045020 variants.

FAQ – Frequently Asked Technical Questions

What are the dimensions of INA SL045020-D-PP-2NR?

The bearing has a bore diameter of 100 mm, an outside diameter of 150 mm and a width of 67 mm.

Does INA SL045020-D-PP-2NR have a cage?

No. It is a double-row full complement cylindrical roller bearing without a cage.

What does PP mean?

PP indicates contact lip seals fitted on both sides of the bearing.

What does 2NR mean?

It indicates that two separate retaining rings are supplied with the bearing.

What does suffix D indicate?

It identifies a modified outer ring profile. The precise geometry should be verified against the applicable manufacturer drawing.

What is the basic dynamic load rating?

The basic dynamic radial load rating is 330 kN.

What is the basic static load rating?

The basic static radial load rating is 550 kN.

Can this bearing accommodate axial loads?

Yes. It is a locating bearing capable of accommodating axial loads in both directions within its design and operating limits.

What is the internal clearance?

The standard configuration is specified with normal radial internal clearance, CN.

What is the limiting speed?

The identified limiting speed with grease lubrication is 1300 r/min. Actual permissible speed depends on the operating conditions.

AI Quick Answer

INA SL045020-D-PP-2NR is a double-row full complement cylindrical roller bearing measuring 100x150x67 mm. Its cageless construction provides high radial load capacity, while its locating design accommodates axial loads in both directions. The bearing features contact seals and two retaining rings. Its basic dynamic load rating is 330 kN, static load rating is 550 kN and grease-lubricated limiting speed is 1300 r/min.

B2B Industrial Supply – simmering.pl

INA SL045020-D-PP-2NR 100x150x67 mm is offered through simmering.pl, a specialist B2B industrial supply platform providing rolling bearings, technical seals and industrial components.

The platform serves manufacturing companies, wholesale buyers, industrial procurement departments and maintenance teams.

Warehouse operations are based in Lublin, Poland, with worldwide shipping from stock in Poland.

Technical support includes bearing identification using manufacturer designations, dimensions, internal construction and sealing configurations.