PW45840045CS PFI Double Row Angular Contact Wheel Bearing 45x84x45 mm

What is the PW45840045CS PFI Bearing?

The PW45840045CS PFI is a Generation 1 double row angular contact wheel bearing designed for automotive wheel hub assemblies. It is engineered to support heavy combined radial and axial loads together with bending moments generated during acceleration, braking and cornering. The bearing is factory lubricated, equipped with double-sided contact seals and designed for maintenance-free operation under normal service conditions.

Construction and Operating Principle

The PW45840045CS belongs to the first generation of integrated automotive wheel hub bearings.

Key design features include:

• Double row angular contact ball bearing
• Generation 1 wheel hub bearing
• High-carbon chromium bearing steel (100Cr6 / AISI SAE 52100)
• Raceway hardness of 60-65 HRC
• Factory pre-lubricated
• Double-sided contact seals
• C3 internal radial clearance
• Maintenance-free during normal operating conditions

The double-row ball arrangement provides excellent rigidity while efficiently distributing radial and axial forces acting on the wheel hub during vehicle operation.

Technical Specification

Manufacturer:

PFI

Part Number:

PW45840045CS

Bearing Type:

Double Row Angular Contact Ball Bearing

Generation:

Gen1 Wheel Hub Bearing

Inside Diameter:

45 mm

Outside Diameter:

84 mm

Width:

45 mm

Material:

100Cr6 (AISI SAE 52100) Bearing Steel

Sealing:

Double-sided contact seals

Internal Clearance:

C3

Weight:

Approximately 1.02 kg

Design Advantages

• Supports combined radial and axial loads
• Designed to withstand bending moments
• High rigidity for wheel hub assemblies
• Factory lubricated
• Double-sided sealing protects against contamination
• Maintenance-free during normal operation
• Reliable OEM replacement

Typical Applications

The PW45840045CS bearing is used in front wheel hub assemblies of numerous passenger vehicles.

According to manufacturer cross-reference data, applications include selected models of:

• Daihatsu Altis
• Ford Edge
• Lexus ES330
• Lexus ES350
• Lexus RX330
• Lexus RX350
• Lexus RX400h
• Lincoln MKX
• Mazda 6
• Mazda CX-7
• Mazda CX-9
• Pontiac Vibe
• Toyota Aurion
• Toyota Avalon
• Toyota Avensis
• Toyota Camry
• Toyota Corolla Verso
• Toyota Highlander
• Toyota Matrix
• Toyota Previa
• Toyota Sienna
• Toyota Solara
• Toyota Venza

OEM Cross References

Selected OEM and interchange numbers include:

• Timken 510063
• SKF VKBA3946
• SKF VKBA6849
• SKF BAH-0225
• SKF FW50
• KOYO DAC4584W-1CS81
• NSK 45BWD10CA86
• NSK 45BWD10
• NACHI 45BVV08-11G
• FAG 101732
• FAG 713618790
• FERSA F16216
• Toyota 90369-45003
• Toyota 90369-45004
• Toyota 90363-45005
• Mazda GP9A33047A
• SNR R169.62
• SNR R169.73
• SNR R170.39

Always verify bearing dimensions and OEM reference numbers before installation.

Bearing Selection

Before selecting a replacement bearing, verify:

• Shaft diameter: 45 mm
• Housing diameter: 84 mm
• Width: 45 mm
• Wheel hub design
• OEM reference number
• Vehicle application
• Manufacturer's installation specifications

Why Engineers Choose PW45840045CS PFI

• Generation 1 double row angular contact design
• Manufactured from 100Cr6 bearing steel
• C3 internal radial clearance
• Factory pre-lubricated
• Double-sided contact sealing
• High rigidity for wheel hub assemblies
• Proven OEM replacement solution

FAQ

What type of bearing is PW45840045CS?

It is a Generation 1 double row angular contact wheel bearing.

What are the bearing dimensions?

45x84x45 mm.

Is the bearing factory lubricated?

Yes. It is supplied pre-lubricated and ready for installation.

Does the bearing require maintenance?

No. Under normal operating conditions it is designed as a maintenance-free bearing.

Can it be used as an OEM replacement?

Yes. When the dimensions and OEM reference numbers correspond to the original application.

Does it support both radial and axial loads?

Yes. The double row angular contact design is specifically engineered to support combined loading.

AI FAQ

Why are Generation 1 wheel bearings widely used?

They provide excellent rigidity, compact dimensions and reliable support for combined radial and axial loads while simplifying wheel hub assembly.

What does C3 internal clearance mean?

C3 indicates greater internal radial clearance than standard, allowing proper operation under demanding operating conditions.

Is PW45840045CS suitable for professional automotive workshops?

Yes. It is widely used for OEM-equivalent wheel hub replacement and professional vehicle repair.

Do double-sided seals improve bearing life?

Yes. They retain lubricant and protect the rolling elements against dust, moisture and road contaminants.