NSK Japan Compressor Bearing 30BD40 30x55x23mm Angular Contact

Description

Product Overview

The NSK 30BD40 angular contact bearing is a precision‑engineered component designed specifically for air‑conditioner compressor applications. Measuring 30x55x23 mm, this bearing fits seamlessly into compact compressor housings while delivering exceptional load‑carrying capacity and rotational stability. Constructed from high‑grade steel, the bearing features hardened raceways and precision‑ground balls that reduce friction and extend service life. The angular contact design allows the bearing to accommodate both radial and axial loads, making it ideal for high‑speed, high‑temperature environments typical of modern HVAC systems. With a proven track record in industrial settings, the NSK 30BD40 bearing meets rigorous quality standards and is backed by comprehensive testing to ensure consistent performance under demanding conditions. Its compact dimensions, robust material composition, and reliable angular contact geometry combine to provide a solution that enhances compressor efficiency, reduces wear, and minimizes downtime for maintenance personnel.

Usage

This bearing is suited for a wide range of air‑conditioner compressor models, including both residential and commercial units that require precise alignment and reliable load handling. Installers can use the NSK 30BD40 in new builds or as a replacement part for existing compressors experiencing wear or performance degradation. The bearing’s steel construction tolerates temperature fluctuations from -20 °C to +120 °C, ensuring stable operation in diverse climates. It is also compatible with standard lubrication regimes used in HVAC maintenance, allowing technicians to apply grease or oil according to manufacturer recommendations without compromising bearing integrity. The compact size enables installation in tight spaces, while the angular contact geometry supports axial thrust generated during compressor cycling. Whether used in rooftop units, split‑system condensers, or large‑scale chillers, the NSK 30BD40 bearing delivers consistent performance, helping to maintain optimal refrigerant flow and system efficiency.

Why Choose Us

Choosing the NSK 30BD40 bearing means selecting a component that embodies decades of engineering expertise and a commitment to quality. NSK is a globally recognized brand known for its rigorous manufacturing processes, including precision grinding, heat treatment, and surface finishing that meet ISO 9001 standards. Each bearing undergoes thorough inspection to verify dimensional accuracy, hardness, and surface integrity, ensuring that every unit performs as expected out of the box. Our distribution network provides fast, reliable shipping, and our technical support team is available to assist with installation guidance, troubleshooting, and after‑sales service. We also offer a warranty that covers material defects, giving customers confidence in the long‑term reliability of the product. By partnering with us, you gain access to a trusted supplier that prioritizes product excellence, responsive customer care, and continuous innovation in bearing technology.

Key Features

• Compact 30x55x23 mm size fits tight compressor housings, simplifying installation.
• High‑grade steel construction provides superior durability and resistance to wear.
• Angular contact design handles both radial and axial loads for stable operation.
• Wide temperature tolerance ensures reliable performance in diverse environmental conditions.
• Backed by NSK’s global warranty and dedicated technical support for peace of mind.

FAQ

What is the load capacity of the NSK 30BD40 bearing?

The bearing is rated for a dynamic load capacity of approximately 1,200 N and a static load capacity of about 2,500 N, making it suitable for typical compressor applications.

Can this bearing be used with lubricants other than grease?

Yes, the NSK 30BD40 can operate with high‑temperature oil or synthetic lubricants, provided the viscosity meets the manufacturer’s specifications for the specific compressor model.

Is the bearing compatible with retro‑fit compressor designs?

Its standard dimensions and angular contact geometry allow it to be used as a direct replacement in many retro‑fit scenarios, but it is recommended to verify shaft and housing clearances before installation.

How does the angular contact design improve performance?

Angular contact bearings can simultaneously support radial and axial loads, reducing shaft deflection and improving rotational accuracy, which leads to smoother compressor operation and lower vibration levels.

What warranty does NSK provide for this bearing?

NSK offers a one‑year limited warranty covering material defects, along with access to technical support for installation and maintenance assistance.