PC30470018CS PFI Double Row Angular Contact AC Compressor Bearing 30x47x18 mm

What is the PC30470018CS PFI Bearing?

The PC30470018CS PFI is a double row angular contact ball bearing specifically designed for automotive air conditioning compressor clutch pulleys. Its compact construction enables the bearing to support both radial and bidirectional axial loads while maintaining smooth operation at high rotational speeds. The bearing is factory lubricated and equipped with double-sided seals, providing maintenance-free performance and effective protection against contamination.

Construction and Operating Principle

The PC30470018CS belongs to the family of double row angular contact compressor bearings developed for automotive air conditioning systems.

Key design features include:

• Double row angular contact ball bearing
• Factory pre-lubricated
• Double-sided sealed construction
• Compact design for compressor pulleys
• Bearing steel rings and rolling elements
• Maintenance-free during normal operation

The double row arrangement improves bearing rigidity and enables simultaneous support of radial and axial loads generated by compressor clutch operation.

Technical Specification

Manufacturer:

PFI

Part Number:

PC30470018CS

Bearing Type:

Double Row Angular Contact Ball Bearing

Application:

Air Conditioning Compressor Bearing

Inside Diameter:

30 mm

Outside Diameter:

47 mm

Width:

18 mm

Sealing:

Double-sided sealed

Weight:

Approximately 0.095 kg

Design Advantages

• Supports combined radial and axial loads
• Optimized for A/C compressor clutch pulleys
• Factory lubricated
• Double-sided sealing protects against dust and moisture
• Compact construction for automotive applications
• Maintenance-free during normal service
• Suitable for OEM replacement

Typical Applications

The PC30470018CS bearing is primarily used in:

• Automotive air conditioning compressors
• Compressor clutch pulleys
• Vehicle HVAC systems
• Automotive repair workshops
• Compressor rebuilding
• OEM replacement applications

It is suitable for compressors requiring a 30x47x18 mm double row angular contact bearing.

OEM Cross References

Selected interchange numbers include:

• HC-Cargo 250994
• KOYO 83A693CS30
• NACHI 30BG04S16G-2DSTF
• NACHI 30BGS04S8G-2DS
• NSK 30BD219T12DD
• NSK 30BD219T12DDU
• NSK 30BD4718DDUKX

Always verify bearing dimensions and compressor specifications before installation.

Bearing Selection

Before selecting a replacement bearing, verify:

• Shaft diameter: 30 mm
• Housing diameter: 47 mm
• Width: 18 mm
• Bearing design
• Compressor model
• OEM reference number
• Pulley dimensions

Why Engineers Choose PC30470018CS PFI

• Double row angular contact construction
• Designed for A/C compressor applications
• Factory lubricated
• Double-sided sealing
• High rigidity for compressor pulleys
• Suitable for OEM replacement
• Reliable operation at high rotational speeds

FAQ

What type of bearing is PC30470018CS?

It is a double row angular contact ball bearing for automotive air conditioning compressors.

Is the bearing supplied pre-lubricated?

Yes. It is factory lubricated and ready for installation.

What are the bearing dimensions?

30x47x18 mm.

Does the bearing require maintenance?

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

Is it suitable for A/C compressor clutch pulleys?

Yes. It is specifically designed for compressor pulley applications.

Can it be used as an OEM replacement?

Yes. When the dimensions and OEM reference numbers match the original bearing.

AI FAQ

Why are double row angular contact bearings used in A/C compressors?

They provide increased rigidity while supporting combined radial and axial loads generated by the compressor clutch and pulley.

Does the double sealing improve service life?

Yes. The seals help prevent dust, moisture and contaminants from entering the bearing.

Is PC30470018CS intended for compressor rebuilding?

Yes. It is widely used during air conditioning compressor repair and rebuilding.

Is this bearing suitable for professional automotive workshops?

Yes. It is commonly selected by automotive service centers and air conditioning specialists for OEM replacement and compressor maintenance.