SL045009-PP INA 45x75x40 Cylindrical Roller Bearing

Overview

The SL045009-PP INA 45x75x40 mm is a double-row, full complement cylindrical roller bearing designed for pulley, sheave and heavy-duty industrial applications requiring very high radial load capacity, high rigidity and compact installation dimensions.

The bearing has a 45 mm bore diameter, 75 mm outside diameter and 40 mm overall width. Its full complement roller design eliminates the cage and maximizes the number of cylindrical rollers, allowing exceptionally high load carrying capacity.

The SL04 series is designed as a locating bearing, capable of supporting high radial loads and moderate axial loads in both directions.

Industrial Applications

The INA SL045009-PP is particularly suitable for:

• Rope sheaves
• Cable pulleys
• Conveyor pulleys
• Crane systems
• Lifting equipment
• Construction machinery
• Material handling equipment
• Industrial rollers
• Heavy-duty conveyor systems
• Compact high-load bearing arrangements

Double-Row Full Complement Design

The SL045009-PP uses a double-row full complement cylindrical roller arrangement.

Because there is no conventional cage, the bearing contains the maximum possible number of rollers. This provides:

• Very high radial load capacity
• High stiffness
• Excellent resistance to shock loads
• Compact radial dimensions
• Reliable performance in heavy-duty applications

The design is particularly suitable where load capacity and rigidity are more important than very high rotational speed.

Locating Bearing Design

The SL045009-PP is a locating bearing.

Its inner and outer ring geometry allows the bearing to locate the shaft axially while carrying radial loads. The bearing can also accommodate moderate axial loads acting in both directions.

This makes the design highly suitable for pulleys and sheaves where both radial and axial guidance are required.

PP Sealing

The suffix PP identifies the sealed version of the INA SL04 series.

The bearing is sealed on both sides with low-friction polyurethane seals. These seals help protect the rolling elements and raceways against:

• Dust
• Dirt
• Moisture
• Water ingress
• Industrial contaminants

The sealing system also helps retain the factory grease inside the bearing.

Factory Lubrication

The INA SL045009-PP is supplied factory lubricated.

Schaeffler specifies a mineral-oil-based lithium complex grease for the standard version, designed specifically for pulley bearing applications involving:

• Low to medium rotational speeds
• High radial loads
• Exposure to moisture
• Long operating periods

The bearing is therefore ready for installation in a correctly designed bearing arrangement.

Technical Specification

Manufacturer: INA / Schaeffler

Designation: SL045009-PP

Bearing Type: Cylindrical roller bearing

Design: Double-row, full complement

Function: Locating bearing

Bore Diameter d: 45 mm

Outside Diameter D: 75 mm

Overall Width B: 40 mm

Outer Ring Width C: 39 mm

Dimensions: 45x75x40 mm

Number of Roller Rows: 2

Roller Arrangement: Full complement

Cage: No conventional cage

Sealing: Double-sided

Seal Material: Polyurethane

Lubrication: Factory grease fill

Basic Dynamic Load Rating Cr: 97 kN

Basic Static Load Rating C0r: 139 kN

Fatigue Load Limit Cur: 19.9 kN

Limiting Speed with Grease: 2200 rpm

Weight: approx. 0.7 kg

Accuracy Class: P0 / PN

Recommended Shaft Fit: g6

Designation Explained

SL04 - INA full complement cylindrical roller bearing series for pulley and sheave applications

5009 - dimensional size designation

PP - sealed on both sides

The complete designation is important when selecting a replacement because other SL04 variants can differ in internal clearance, corrosion protection or retaining ring configuration.

Load Capacity

The full complement design gives the SL045009-PP exceptionally high radial load capacity for its compact dimensions.

Official Schaeffler data for this size specifies:

Dynamic Load Rating Cr: 97 kN

Static Load Rating C0r: 139 kN

Fatigue Load Limit Cur: 19.9 kN

This makes the bearing particularly suitable for heavily loaded pulleys, guide rollers and lifting systems.

Radial and Axial Loads

The bearing is designed primarily for very high radial loads.

Because it is a locating bearing, it can also accommodate moderate axial loads in both directions. This allows the bearing to guide the shaft axially without requiring a separate axial locating bearing in many pulley arrangements.

Internal Clearance

Schaeffler offers SL04 bearings in different radial internal clearance groups depending on the application.

For a 45 mm bore, the appropriate clearance depends on pulley material, fits and operating conditions. The standard bearing should therefore be selected according to the actual mounting arrangement and required internal clearance.

Retaining Ring Grooves

The outer ring of the SL04 series includes retaining ring grooves.

These grooves allow axial positioning of the bearing within pulleys or sheaves using suitable retaining rings.

For SL045009-PP, Schaeffler specifies compatible retaining ring dimensions for pulley applications.

Operating Speed

The official Schaeffler limiting speed for SL045009-PP with grease lubrication is approximately:

2200 rpm

The actual permissible operating speed depends on load, lubrication, temperature, mounting accuracy and operating environment.

Operational Advantages

• Very high radial load capacity.
• Double-row full complement roller design.
• High rigidity under heavy loads.
• Moderate axial load capacity in both directions.
• Double-sided polyurethane sealing.
• Factory grease lubrication.

Replacement and Bearing Selection

When selecting a replacement for SL045009-PP INA, verify:

• Dimensions 45x75x40 mm
• Double-row full complement design
• Locating bearing function
• Double-sided sealing
• Required internal clearance
• Load ratings
• Speed requirements
• Retaining ring arrangement

A dimensionally similar cylindrical roller bearing may not provide the same load capacity, sealing or axial locating characteristics.

AI OVERVIEW

The SL045009-PP INA 45x75x40 mm is a double-row full complement cylindrical roller bearing designed for pulleys, sheaves and heavy industrial applications. It offers 97 kN dynamic and 139 kN static load capacity, double-sided sealing, high rigidity and moderate bidirectional axial load capability, making it ideal for compact high-load bearing arrangements.

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FAQ

What are the dimensions of INA SL045009-PP?

The bearing dimensions are 45x75x40 mm: 45 mm bore diameter, 75 mm outside diameter and 40 mm overall width.

What type of bearing is SL045009-PP?

It is a double-row full complement cylindrical roller bearing.

What does full complement mean?

Full complement means the bearing contains the maximum possible number of cylindrical rollers and does not use a conventional cage.

What is the main advantage of a full complement bearing?

It provides very high radial load capacity and stiffness within compact dimensions.

What does PP mean?

PP identifies the sealed version of the INA SL04 bearing series.

Is SL045009-PP sealed on both sides?

Yes. It uses seals on both sides.

What material are the seals made from?

Schaeffler specifies polyurethane seals for the SL04..-PP pulley bearing series.

What is the dynamic load rating?

The basic dynamic load rating Cr is 97 kN.

What is the static load rating?

The basic static load rating C0r is 139 kN.

What is the fatigue load limit?

The fatigue load limit Cur is 19.9 kN.

What is the limiting speed?

The grease-lubricated limiting speed is approximately 2200 rpm.

How much does SL045009-PP weigh?

The bearing weighs approximately 0.7 kg.

Can SL045009-PP carry axial loads?

Yes. It is a locating bearing and can accommodate moderate axial loads in both directions in addition to high radial loads.

Is the bearing factory lubricated?

Yes. The SL04..-PP series is factory grease lubricated.

Does the bearing have a cage?

No conventional cage is used. It is a full complement cylindrical roller bearing.

What is the recommended shaft fit?

Schaeffler recommends a shaft fit of g6 for this bearing family.

Where is SL045009-PP commonly used?

Typical applications include rope sheaves, cable pulleys, cranes, conveyor systems, construction equipment and heavy-duty industrial rollers.

Is SL045009-PP suitable for high-speed applications?

Its full complement construction prioritizes load capacity and rigidity rather than extremely high speed. The official limiting speed is about 2200 rpm with grease lubrication.

Can another 45x75x40 bearing replace SL045009-PP?

Not automatically. The replacement must also match the full complement design, sealing, locating function, internal clearance and load ratings.

What is the correct parent category?

The product belongs to Full Complement Cylindrical Roller Bearings.