Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of ultra high-speed angular contact ball bearings 70bnr10h 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.
Ultra High-speed Angular Contact Ball Bearings-70BNR10HTYNDBBELP4
Also supply: 70BNR10STYNDBLP4, 70BNR10STYNV1VDBELP4, 70BNR10STYNSULP4
Technical Data
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Inside Ø (mm): |
50 |
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Outside Ø (mm): |
80 |
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Width (mm): |
16 |
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Contact Angle: |
18° |
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Rows Of Balls: |
Single Row |
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Ring Material: |
GCr15, 100Cr6, SUJ2 |
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Rolling Element Material: |
Ceramics |
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Cage Material: |
Plastic |
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Tolerance Class: |
P4S |
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Type of lubrication: |
Grease |
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Product weight: |
0.256 kg |
| Bearing No. | Dimension (mm) | 基本额定载荷(kN) | 质量 | 极限转速(1) | |||||
| (kg) | (mm⁻¹) | ||||||||
| d | D | B | r | r1 | Cr | Cq | |||
| (min) | (min) | ||||||||
| 55BNR10SV1V | 55 | 90 | 18 | 1.1 | 0.6 | 15.1 | 12.5 | 0.414 | 19 400 |
| 55BNR10HV1V | 55 | 90 | 18 | 1.1 | 0.6 | 0.393 | 24 900 | ||
| 55BNR10XV1V | 55 | 90 | 18 | 1.1 | 0.6 | 0.393 | 29 000 | ||
| 55BER10SV1V | 55 | 90 | 18 | 1.1 | 0.6 | 14.4 | 12 | 0.414 | 16 600 |
| 55BER10HV1V | 55 | 90 | 18 | 1.1 | 0.6 | 0.393 | 22 100 | ||
| 55BER10XV1V | 55 | 90 | 18 | 1.1 | 0.6 | 0.393 | 26 300 | ||
| 60BNR10SV1V | 60 | 95 | 18 | 1.1 | 0.6 | 15.6 | 13.7 | 0.443 | 18 100 |
| 60BNR10HV1V | 60 | 95 | 18 | 1.1 | 0.6 | 0.419 | 23 300 | ||
| 60BNR10XV1V | 60 | 95 | 18 | 1.1 | 0.6 | 0.419 | 27 100 | ||
| 60BER10SV1V | 60 | 95 | 18 | 1.1 | 0.6 | 15 | 13.1 | 0.443 | 15 500 |
| 60BER10HV1V | 60 | 95 | 18 | 1.1 | 0.6 | 0.419 | 20 700 | ||
| 60BER10XV1V | 60 | 95 | 18 | 1.1 | 0.6 | 0.419 | 24 600 | ||
| 65BNR10SV1V | 65 | 100 | 18 | 1.1 | 0.6 | 16.2 | 14.8 | 0.472 | 17 000 |
| 65BNR10HV1V | 65 | 100 | 18 | 1.1 | 0.6 | 0.447 | 21 900 | ||
| 65BNR10XV1V | 65 | 100 | 18 | 1.1 | 0.6 | 0.447 | 25 500 | ||
| 65BER10SV1V | 65 | 100 | 18 | 1.1 | 0.6 | 15.5 | 14.2 | 0.472 | 14 600 |
| 65BER10HV1V | 65 | 100 | 18 | 1.1 | 0.6 | 0.447 | 19 400 | ||
| 65BER10XV1V | 65 | 100 | 18 | 1.1 | 0.6 | 0.447 | 23 100 | ||
| 70BNR10SV1V | 70 | 110 | 20 | 1.1 | 0.6 | 22.3 | 19.8 | 0.645 | 15 600 |
| 70BNR10HV1V | 70 | 110 | 20 | 1.1 | 0.6 | 0.605 | 20 000 | ||
| 70BNR10XV1V | 70 | 110 | 20 | 1.1 | 0.6 | 0.605 | 23 400 | ||
| 70BER10SV1V | 70 | 110 | 20 | 1.1 | 0.6 | 21.3 | 18.9 | 0.645 | 13 400 |
| 70BER10HV1V | 70 | 110 | 20 | 1.1 | 0.6 | 0.605 | 17 800 | ||
| 70BER10XV1V | 70 | 110 | 20 | 1.1 | 0.6 | 0.605 | 21 200 | ||
Features
1. Hybrid build: Steel rings + Si₃N₄ ceramic balls
2. Lightweight ceramic cuts high-speed centrifugal load
3. High hardness, wear-proof & longer service life
4. Low thermal expansion, stable preload at high RPM
5. Insulated ceramic avoids stray current corrosion
6. Higher DN value for ultra-high-speed spindle use
7. Less friction & heat, sustain long-term precision
8. Better resistance to moisture, weak acid & oil aging
Applications
1. Constructed with steel inner & outer rings paired with silicon nitride ceramic rolling balls for hybrid bearing configuration.
2. Ceramic balls weigh roughly 40% less than steel alternatives to slash centrifugal force under high-speed spinning.
3. Exceptional surface hardness delivers outstanding anti-wear and anti-fatigue performance to extend overall service lifespan.
4. Minimal thermal expansion minimizes operational thermal distortion and maintains consistent preload at elevated rotating speeds.
5. Electrically insulated ceramic rolling elements effectively block stray current erosion and stop raceway electric pitting damage.
6. Supports remarkably higher DN ratings versus all-steel spindle bearings to satisfy ultra-high-speed spindle working demands.
7. Ultra-smooth ceramic rolling surfaces lower frictional loss and heat accumulation, securing long-term spindle running accuracy.
8. Outperforms full-steel bearings against humidity, mild acid erosion and lubricant aging for enhanced corrosion resilience.
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.
Product Range
Series: 6000–6024, 6200–6214, 6300–6314, 6800–6824, 6900–6924
Features: High rigidity, low noise; suitable for grease lubrication or oil-mist lubrication.
6 Series X4YA-2RS (Double-lip seal) & APT Retainer Series
Features: High & low temperature resistance, superior sealing, high load capacity, long service life.
Application: New energy vehicle transmission systems.
Certificates
Exhibition
FAQ
Q6: Does the 18° contact angle design affect the bearing's load capacity?
There is no negative impact on conventional spindle operating loads. The 18° optimized angle moderately weakens redundant axial load tolerance but greatly improves high-speed dynamic performance. For standard precision finishing and ultra-high-speed spindle working conditions, the reserved radial and axial rigidity is completely sufficient, while the advantages of low heat and stable precision are maximized. It is not recommended for heavy-load rough machining scenarios with extreme impact loads.
Q7: What lubrication method is recommended for 50BNR10H to exert its ultimate performance?
To release its ultra-high-speed advantages, oil-air lubrication is the preferred matching method, which supports the bearing's maximum speed capacity and long-term stable operation. For conventional medium-speed continuous operation, high-grade long-life synthetic grease lubrication is also applicable, which can maintain low friction and anti-aging performance to meet daily high-precision processing demands.
Q8: What are the durability advantages of BNR series hybrid ceramic structure in long-term operation?
Compared with all-steel high-speed bearings, the Si₃N₄ ceramic balls feature ultra-low wear and self-lubricating properties, effectively reducing contact fatigue and rolling abrasion. Cooperated with the low-friction 18° contact track design, it greatly lowers heat accumulation and thermal fatigue failure. The overall service life is significantly extended, and it effectively avoids common spindle faults such as thermal displacement, abnormal noise and precision decay after long-term operation.
Q: Can you make customized products?
A: Yes, we can customize products according to customer needs, develop and produce products according to drawings or samples provided by customers. We also have our own brands of HXB and YJB.
Q: Where are your goods mainly exported to?
A: Our products are mainly exported to the United States, Japan, South Korea, India and other countries. The main customers are Siemens, JOHN-DEER, HUSQVARNA, FEDERAL-MOGUL.
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