Deep Groove Ball Bearing
Category
Rimao is a trusted deep groove ball bearing manufacturer with extensive experience serving clients across a broad range of industries. We offer a complete range of deep groove ball bearings (DGBBs) in both metric and imperial sizes, and specialize in customizing solutions to meet your specific application requirements.
We stock an extensive selection of deep groove ball bearings, covering:
Metric and imperial sizes
Standard type, thin-wall type, narrow type, wide type, miniature and ultra-small types
Open bearings, shielded bearings, sealed bearings, and bearings with snap rings
Whether you're looking for a common replacement bearing or a specialized solution, our team can help you identify the ideal product.
Deep groove ball bearings are the most widely used type of bearings in the world, ideal for applications ranging from lawn mowers and electric motors to vehicles, aircraft, and heavy machinery. Their versatility and reliability make them the go-to choice across various industrial sectors.
Thanks to the unique design of the inner and outer raceways, deep groove ball bearings can handle:
Radial loads
Axial loads in both directions
This makes them suitable for many dynamic applications. However, due to a limited number of rolling elements, they may not be suitable for extremely high-load environments.
At Rimao, we focus on custom-engineered bearing solutions to meet your specific technical needs. We offer customization in:
Material selection (including stainless steel, ceramic, and carbon-chromium steel)
Grease type for enhanced lubrication and lifespan
Seal or shield types (rubber contact seals, metal shields, or open)
Cage design and material (steel, solid brass, polymer)
Bearing markings and logo engraving
Our deep groove ball bearings are designed to deliver exceptional reliability in diverse operating conditions. Key engineering features include:
Super-finished raceways – reduce noise and improve lubrication distribution
Precision internal geometries – ensure smooth operation and consistent performance
Ultra-clean steel options – enhance fatigue resistance and bearing lifespan
Electrical insulation options – available for specific industrial applications
Outer diameters up to 2500mm – suitable for large-scale equipment
Rimao uses precision-grade steel balls up to G3 level to ensure:
Smooth and quiet operation even at high speeds
Stable rotational accuracy under demanding loads
For high-speed or high-heat applications, ceramic balls are also available, offering lower thermal expansion and higher durability.
We offer a variety of cage options depending on application requirements:
Stamped steel riveted cages – ideal for standard applications under dmN < 350,000
Stamped strip cages – used in small-size bearings such as 608 or below
Nylon snap-fit cages – lightweight, low heat generation, suitable for dmN between 350,000 and 650,000
For extreme operating conditions, brass cages are also available to provide additional strength and durability, especially under shock loads and high vibration.
Our deep groove ball bearings are equipped with advanced sealing options to ensure long-lasting performance:
Contact seals – protect against dust and liquids, though with slightly higher torque and lower speed limits
Non-contact seals – provide effective protection with minimal impact on speed and torque
Seals are crucial for maintaining lubricant purity and protecting bearings from contaminants in challenging environments.
We utilize industry-leading grease technology to ensure:
Extended lubrication life
Low noise and low torque performance
Temperature and load resistance across operational environments
All rings are hardened using carburization or carbonitriding processes to improve wear resistance, especially under prolonged high-pressure use.
To guarantee reliable performance, every deep groove ball bearing we manufacture is subject to 100% quality testing. This includes dimensional accuracy checks, noise testing, dynamic and static load testing, and material purity evaluation.
Rimao's deep groove ball bearings are designed in accordance with ISO standards. This ensures full interchangeability with major global brands, offering you flexibility during procurement or replacement.
Our bearings are optimized for electric motor applications, offering:
Ultra-smooth raceways to reduce friction
Carefully controlled internal clearance (e.g., C3 clearance)
Premium lubricants for low torque and minimal noise
These features help ensure quiet operation and extended service life, especially in motor-driven systems.
We follow industry-standard bearing life calculations, such as the L10 rating, which predicts the time by which 90% of bearings will continue functioning without fatigue failure. Our use of high-purity materials, optimized geometry, and advanced lubrication ensures a long operational life for every bearing you purchase from Rimao.
Full product range in metric and imperial sizes
Custom solutions tailored to your technical needs
High-quality materials and advanced processing
Reliable supply chain and competitive pricing
ISO-standardized designs for easy interchangeability
Expert technical support and application guidance
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Looking for a dependable partner in deep groove ball bearings?
Let Rimao help you source or customize the perfect solution for your needs.
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