Low noise electric motor grade bearings for shaft sizes from 10mm to 30mm
See product table below for dimensions and technical drawings.
Our low noise bearings are designed to meet the demands of high-performance electric motors, offering durability, precision and quiet operation across a wide range of applications. Suitable for electric motor shafts from 10mm to 30mm, these high quality bearings are manufactured for low noise and reduced vibration, making them ideal for diverse electric motor applications.
For detailed sizing, consult our product table below, where you’ll find dimensions and technical drawings for each bearing.
Product variants and noise grades for electric motor bearing types
Explore our product variants below, each tailored to specific performance needs and noise requirements. Our low noise ball bearings for electric motors are EMQ2 rated and designed to perform well under low noise and low vibration conditions.
These types of electric motor bearings are available with different radial play groups to accommodate various electric motor applications. The CN (standard) radial play and looser C3 radial play are the most common configurations in stock, providing flexibility for a range of needs. In addition, we offer smaller, noise-tested EZO bearings specifically for electric motor use.
Versatile bearing types for radial and axial loads
Our inventory includes deep groove ball bearings and cylindrical roller bearings engineered for durability and precision. These bearings excel in handling both radial loads and axial loads, making them ideal for various electric motor applications. Deep groove ball bearings, particularly, are known for their ability to support high-speed applications, while cylindrical roller bearings are designed for higher radial load capacity and stability at high speeds.
The EMQ2 radial ball bearings can accommodate both radial and axial forces in either direction, with an axial load capacity of 25 to 50 per cent of the bearing’s static radial load rating. We stock popular series, including 6000, 6200 and 6300 series, in low noise configurations ideal for a wide range of electric motor applications.
For applications requiring greater load-bearing capabilities and angular precision, we recommend our angular contact ball bearings. These high-speed bearings provide enhanced support for combined loads and are optimised for alignment, essential in high-speed and high-performance applications.
Materials, construction and temperature tolerance
Constructed from SAE 52100 (100Cr6) chrome steel, our electric motor grade bearings are built to last. They feature a robust steel retainer and are lubricated with a suitable lubricant to withstand temperatures up to 120°C continuously, with intermittent operation up to 150°C.
Chrome steel offers high load-bearing capacity, although, at elevated temperatures, the load capacity reduces. It’s essential to note that these bearings are not suitable for corrosive environments, as chrome steel is not corrosion-resistant. The standard cage or retainer is a two-piece steel ribbon type, which offers additional stability and durability under both high-speed and high-load conditions.
Our product range includes shielded and sealed bearings. Shielded bearings provide protection from dust and contaminants while enabling lubrication with oil, making them perfect for low-speed, low-friction applications. Sealed bearings, on the other hand, offer complete protection from contaminants and are designed for higher speeds and more demanding conditions.
Custom lubrication and shielding options for optimal performance
To enhance the versatility of our electric motor bearings, we offer in-house relubrication options. Customers can specify the type of lubrication, whether grease, oil or dry lubricant, for both shielded and sealed bearings. Grease lubrication is the standard for our EMQ2 bearings as it provides excellent noise reduction and longevity. However, for unique applications, shielded bearings can be lubricated with oil to reduce friction at lower speeds.
With our relubrication services, each bearing can be tailored to meet specific performance needs, ensuring compatibility with high-speed, low-friction, or low-vibration applications. This customisation makes our electric motor bearings suitable for a wide variety uses.
Technical specifications and load calculations
Every bearing in our collection undergoes thorough testing to check that it meets the EMQ2 standard, ensuring low noise and smooth operation.
The rolling elements in our electric motor bearings are crafted for precision and stability, delivering consistent performance even in demanding applications. These rolling elements are essential for the smooth transfer of loads across the bearing surfaces, reducing wear and noise over extended periods of operation.
Choosing the right bearing
Selecting the right bearing type for your electric motor is crucial to achieving optimal performance and longevity. Our diverse inventory includes:
- Deep groove ball bearings for versatile load-handling and high-speed operation.
- Cylindrical roller bearings designed to handle substantial radial loads, ideal for heavier motor applications.
- Angular contact ball bearings for applications requiring both radial and axial support, perfect for high-speed and high-precision motor uses.
Each type offers unique advantages and is suited to specific load capacities and environmental conditions. Whether you need a standard bearing for general-purpose use or a specialised low noise bearing for sensitive applications, our wide range of electric motor bearings ensures a suitable solution for every motor design.
Click on the INFO links in the product rows below to access detailed technical drawings that outline the load and speed capabilities for each bearing type. We recommend operating these bearings at loads and speeds lower than the theoretical maximum ratings to ensure durability and extended bearing life. Operating at maximum capacities can lead to premature wear, reducing the bearing’s effectiveness and potentially impacting motor performance.
See Products Variants below for standard noise grade options
Contact our bearing specialists
Get in touch with our specialist bearing team today by emailing sales@smbbearings.com or fill in the contact form.
