Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of servo motor bearing b25-254 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.
Servo Motor Bearing B25-254
Specifications
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Bearing Type: |
B25-254-high speed servo motor bearing |
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Dimensions (dxDxB): |
25x52x20.6mm |
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Material: |
Chrome steel GCr15, SAE52100, SUJ2, Si3N4 ceramic balls |
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Seals: |
Contact NBR seals on both sides |
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Retainer: |
Polyamide PA46 or PEEK |
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Also know as: |
B25-254-2RS SN24 TP4, 63205K (Fanuc), CB7205BTV2RP4G, HC6205V2-2RZ P4 |
Condition Description
- Corrosive & Humid Operating Environment
- Ultra-High Accuracy & Repeat Positioning Requirements
- Continuous Vibration & Dynamic Variable Load Conditions
Product Features
Our servo motor bearings are professionally optimized for the unique operating characteristics of servo systems, including frequent start-stop, instantaneous variable speed, low-torque operation and long-term stable rotation. Matched with premium customized NLGI 3 grade special grease, these bearings integrate excellent temperature adaptability, anti-corrosion performance and ultra-quiet operation advantages. They perfectly fit the high-precision, high-response and high-stability working requirements of industrial servo motors, servo drive motors and precision motion control equipment.
Benefits
Superior grease properties extend high temperature service life 1.5 times / Restricts fretting corrosion / Low torque / Minimal power loss even at low starting temperatures / Quieter servomotor operation, less vibration / Excellent bearing corrosion protection in humid conditions.
Applications
1. Industrial & Humanoid Robot Systems
2. Food & Packaging Machinery
3. Conveyor & Transmission Systems
4. Semiconductor & LCD Inspection Equipment
5. Machine Tool & Precision Testing Platforms
6. Bonding, Coating & Deposition Equipment
7. Molding & Pressure Processing Machinery
HXB Introduction
Established in 1995, HXB Bearing Manufacturing Group has focused on the track of precision spindle bearings for nearly 30 years. It has built two high-tech R&D platforms and two modern intelligent factories – Hangzhou Yijia and Huzhou Ruiyang – with six subsidiaries operating in coordination. Digital systems including MES and SPC real-time quality control are introduced, and the enterprise has fully passed the three major international system certifications. Its core products are Class P2/P4 high-speed spindle bearings, angular contact ball bearings and vacuum pump bearings, with an annual output of 3 million sets of precision bearings. Overseas customers cover the United States, Japan, South Korea and India. The brand supplies supporting bearings for Siemens, John Deere and other renowned manufacturers, and accepts customized orders for all types of non-standard bearings.
Advantages
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
About HXB
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
- Equipment Investment: Over RMB 3 million in world-leading precision testing instruments
- Digital Transformation: with full deployment of MESYS bearing design platform, ERP, MES, WMS, SPC real-time quality monitoring and OA systems, building a benchmark smart manufacturing plant.
Main Products
Precision Spindle Bearings
Angular Contact Ball Bearings
Servo Motor Bearings
Vacuum Pump Bearings
Ball Screw Support Bearings
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.
We maintain a professional engineering and quality system to ensure stable precision and reliability.
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.
Certificates
Exhibition
FAQ
Q1: What working scenarios are servo motor bearings mainly used for?
A1: They are widely used in high-precision automation scenarios that require frequent positioning and high-response operation, including industrial robot servo joints, CNC equipment servo motors, automated production line drive motors, precision packaging equipment, electronic processing equipment and other high-end motion control servo systems.
Q2: What is the service life advantage of your servo bearings compared with ordinary bearings?
A2: Benefiting from excellent oxidation resistance and thermal stability of the customized grease, the high-temperature service life of our servo bearings is 1.5 times longer than that of ordinary motor bearings. The grease is not easy to oxidize, dry or fail during long-term high-speed operation, greatly extending the maintenance cycle and reducing equipment failure rate caused by lubrication failure.
Q3: Will the special grease affect the motor's plastic and rubber parts?
A3: No. The servo-grade lubricating grease has excellent material compatibility with commonly used rubber seals and plastic components inside motors. It causes no swelling, aging, cracking or chemical corrosion to sealing and structural accessories. This non-destructive compatibility ensures the long-term sealing performance and structural integrity of the entire servo motor assembly.
Q4: Why do servo bearings need low-torque performance?
A4: Servo systems rely on precise torque output and sensitive motion feedback. High bearing torque will cause delayed motor response, positioning deviation and increased power consumption. Our servo bearings maintain minimal running friction and low starting torque even at low temperatures, ensuring fast, accurate and consistent motion feedback for automated positioning systems.
Q5: How do servo motor bearings resist fretting corrosion?
A5: Servo motors often produce tiny amplitude vibration and frequent intermittent rotation during precise positioning, which easily causes fretting wear and surface corrosion on bearing raceways. Our dedicated grease contains anti-corrosion and anti-wear additives, which form a stable protective oil film on the contact surface. It effectively isolates air and moisture, restricts fretting corrosion, and avoids bearing noise and clearance increase caused by long-term micro-vibration operation.
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