Deep Groove Ball Bearings 6310C3

Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of deep groove ball bearings 6310c3 in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality bearings at competitive price from our factory.

Single Row Deep Groove Ball Bearings 6310C3

This open-type 6310C3 bearing is exclusively suitable for standard and high-speed electric motor scenarios with clean operating environments and circulating lubrication systems. It is the preferred model for industrial motor rotating support, perfectly matching the working characteristics of long-term continuous operation and high-speed rotation of motors.

Ultra-low friction & maximum speed capacity: Without the contact resistance and friction loss brought by seals/shields, the open structure minimizes running torque and heat generation. It fully meets the long-term high-speed rotation demand of electric motors and avoids overheating failure caused by seal friction, ensuring higher operating efficiency than sealed bearings.

Free lubrication circulation & easy maintenance: The open design allows uninterrupted circulation of grease or oil lubrication inside the bearing. It supports on-site refueling, oil cleaning and lubricant replacement without dismounting the bearing, which greatly reduces motor maintenance downtime and extends service life. Lubricant residue and fine wear debris can be discharged smoothly during operation to prevent internal accumulation.

C3 clearance matching for motor working conditions: The C3 larger radial clearance compensates for thermal expansion of the inner ring and shaft during high-speed motor operation, effectively avoiding bearing jamming, abnormal noise and premature wear caused by thermal expansion. It ensures stable rotation with low vibration and low noise for motors under continuous load.

Dual load bearing capacity: The standard deep groove structure can bear both radial load and bidirectional axial load, adapting to the complex stress state of motor rotating shafts during startup, operation and variable load switching, with strong structural versatility and rigidity.

Clean indoor industrial environment: Suitable for factory workshops, mechanical equipment rooms and other closed, dust-free and low-pollution working conditions. In clean environments, there is no risk of dust, moisture or particulate impurities invading the bearing interior, so the open structure can give full play to its high-speed and low-friction advantages without the need for seal protection.

High-speed & continuous operation conditions: Ideal for motors that run 24/7 continuously and require high rotation accuracy, such as industrial driving motors, fan motors, pump motors and mechanical transmission motors. The open structure avoids heat accumulation from sealed friction and ensures long-term stable high-speed operation.

Equipped with circulating lubrication system: Perfect for motor systems with automatic grease filling, oil circulation lubrication or regular manual maintenance. The open design supports full lubricant penetration and circulating renewal, keeping the internal bearing lubrication state optimal at all times.

Non-applicable scenarios (auxiliary explanation): Not recommended for outdoor open-air, dusty, humid, corrosive or splash-prone environments. Such harsh scenarios require sealed bearings to block pollutants, while open bearings will suffer from internal contamination and premature failure.

Established in May 1995, Hangzhou Huaxing Kechuang Holding Group (HXB, formerly Hangzhou Huaxing Bearing Co., Ltd.) is an integrated enterprise specializing in bearing R&D, production and sales. With over 30 years of industry expertise, HXB operates two professional manufacturing bases: Hangzhou Yijia Precision Bearing Co., Ltd. and Zhejiang Ruiyang Bearing Technology Co., Ltd.

HXB focuses on high-end precision bearings, including high-precision angular contact ball bearings, deep groove ball bearings and new energy vehicle bearings. Our products serve diverse high-end fields such as intelligent manufacturing, 3C electronics, CNC machining centers, precision machinery, robots, aerospace, industrial motors and home appliances.

Equipped with advanced digital MES and SPC management systems, the company has passed ISO9001:2015, IATF16949:2016 and ISO14001 certifications, ensuring standardized production and stable, reliable product quality.

Upholding refined craftsmanship and continuous innovation, HXB delivers premium bearing solutions and sustainable value to global partners.

∗ 30 years of dedicated development

HXB was founded in 1995, with nearly 30 years of dedicated development, HXB now operates6 subsidiaries.

 

∗ 2 high-tech R&D centers

∗ 2 modern manufacturing factories - Hangzhou Yijia Precision Bearing Co., Ltd. and Zhejiang Ruiyang Bearing Technology Co., Ltd.

∗ Supported by advanced digital MES and SPC management systems

∗ IATF16949:2016, ISO9001:2015 and ISO14001 certifications

∗ High-end equipment and high-quality material

1. Hangzhou Factory - YJB

Founded in June 2007, YJB is located in Hangzhou. As a subsidiary of HXB Group, we are a national high-tech enterprise and provincial science & technology enterprise specializing in R&D and manufacturing of high-precision, high-speed, advanced, special and professional bearings.

Core Capabilities & Intelligent Manufacturing

• Product Size: Inner diameter Φ3–Φ300mm
• Precision Classes: P2, P4 (ultra-precision grades)
• Annual Capacity: 3 million sets of precision bearings in a lean & intelligent factory

2. Huzhou Factory

In 2021, the deep groove ball bearing factory relocated from Hangzhou to Huzhou. It operate in a 10,000㎡ production facility with a team of 75 employees, focused on the R&D, and manufacturing of high-performance deep groove ball bearings.

Engineering Team: 4 bearing design & process engineers, accounting for 5% of staff.

Quality Team: 15 quality personnel, including 2 quality engineers, 20% of staff, covering incoming inspection, in-process control and final testing.

The selection of lubrication methods for 6310C3 open-type deep groove ball bearings mainly depends on operating speed, working temperature, service environment and daily maintenance conditions, and the two mainstream lubrication solutions apply to completely different working scenarios.

Grease lubrication is the standard and most widely adopted solution for conventional 6310C3 motor bearings under medium and low speed, normal temperature and continuous stable operation. It requires no complicated auxiliary equipment, features a long lubrication cycle and simple daily maintenance, and delivers stable lubrication protection for long-term running industrial motors, fan motors and pump motors with a DN value below 500,000. With low overall application cost and high practicability, it perfectly matches the operating demands of most standard industrial motors. However, this method has obvious limitations in high-speed working conditions: it offers poor heat dissipation performance, and the grease is prone to aging and coking under long-term ultra-high speed and high temperature, which may affect bearing operating stability and service life.

Oil mist lubrication is specially designed for high-speed, high-temperature and high-precision continuous operation scenarios, ideal for high-precision motor spindles and high-speed transmission equipment with a DN value above 500,000. This technology atomizes lubricating oil into tiny particles via compressed air, which can continuously and evenly penetrate into the interior of open bearings. It realizes micro-quantity and fresh lubrication at all times, effectively reduces operating friction, and takes away internal heat and fine wear debris during operation. It thoroughly solves the problems of heat accumulation and grease failure faced by grease lubrication under ultra-high speed. Nevertheless, oil mist lubrication requires professional atomization equipment and a complete compressed air supply system, resulting in higher application and maintenance costs. Meanwhile, it is not applicable for dusty and humid environments, and supporting oil mist recovery treatment is required to avoid environmental pollution.

In actual application matching, grease lubrication with cost-effective and convenient maintenance is the preferred choice for ordinary standard motors with 24-hour stable operation at room temperature and medium speed. For high-speed precision motors and equipment working under long-term high-temperature conditions, oil mist lubrication is highly recommended. It can fully leverage the open structure's advantages of low friction and efficient heat dissipation, avoid thermal expansion failure and lubrication failure, and maximize the operating performance and service life of 6310C3 open bearings.