Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of angular contact ball bearings 71919cd/p4a 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.
Angular Contact Ball Bearings 71919CD/P4A
FAG B71919C-T-P4S: Perfect equivalent model. 30° contact angle, phenolic resin laminated cage (T code), standard P4S super precision, identical load capacity and high-speed adaptability, fully interchangeable with SKF 71919CD/P4A for spindle and ball screw support systems.
NSK 71919CT/P4: NSK super-precision spindle bearing, 30° contact angle, high-speed resin cage, strict P4 precision standard, excellent dynamic balance and anti-fatigue performance, applicable for high-speed CNC spindle replacement.
NTN 71919C/P4: High-stability precision model, standardized 30° contact angle configuration, consistent runout tolerance and installation dimensions, ideal for medium and high-end precision automation equipment.
HRB 71919C/P4
ZWZ 71919C/P4
LYC 71919C/P4
Technical Data
|
Inside Ø (mm): |
95 |
|
|
Outside Ø (mm): |
130 |
|
|
Width (mm): |
18 |
|
|
Contact Angle: |
25° |
|
|
Rows Of Balls: |
Single Row |
|
|
Ring Material: |
GCr15, 100Cr6, SUJ2 |
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|
Rolling Element Material: |
Steel |
|
|
Cage Material: |
Phenolic Resin |
|
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Lubrication: |
Oil |
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Product weight: |
0.59 kg |
Features
1. Compact thin cross-section & space-saving installation
Ultra-light thin wall structure, narrower width vs 70/72 series with same bore size. Perfect for equipment with limited radial mounting space, allows larger shaft diameter under fixed outer dimension to boost shaft rigidity.
2. Excellent structural stiffness & high load capacity
Max quantity of steel balls for given inner diameter, improving bearing rigidity significantly. D-design high-load version holds larger combined radial + axial loads; paired mounting (DB/DF/DT) bears bidirectional compound load stably. Available in 15°/25° contact angle: 15° for high radial stiffness & high speed, 25° for stronger axial load capacity.
3. Outstanding high-speed performance
Optimized internal geometry + lightweight phenolic/nylon/PEEK cage reduces centrifugal force and running friction, supports ultra-high DN value operation. Hybrid ceramic ball variant cuts rolling weight, lowers heat generation and enables much higher limiting RPM for high-speed spindles.
4. High rotational precision & low vibration noise
Manufactured to P4/P2 super-precision tolerance grades with tight dimensional tolerance, minimal runout and rotation wobble. Optimized cage structure suppresses cage rattling for quiet operation, ideal for precision machining equipment.
HXB Introduction
Established in May 1995, Hangzhou Huaxing Kechuang Holding Group (HXB, formerly known as Hangzhou Huaxing Bearing Co.,Ltd) is a professional technology enterprise integrating R&D, production and sales. Over 30 years of development, we run two major manufacturing bases: Hangzhou Yijia Precision Bearing Co.Ltd. and Zhejiang Ruiyang Bearing Technology Co.,Ltd.
HXB focuses on high-end bearings such as high-precision angular contact ball bearings, deep groove ball bearings and NEV bearings. Our products widely applied in intelligent manufacturing, 3C industry, CNC centers, precision machinery, robots, aerospace, motors and household appliances.
Supported by advanced digital MES & SPC management systems, we have passed ISO9001:2015, IATF16949:2016 and ISO14001 international standard certifications, ensuring reliable product quality and standardized production.
We uphold rigorous craftsmanship and innovative development, committed to delivering superior angular contact bearing solutions and creating long-term value for global partners.
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
Bearing suffix
1. Universal Suffixes (Fully Interchangeable for All Brands)
|
Function Type |
Universal Code |
Description |
|---|---|---|
|
Precision Grade |
P0 / P6 / P5 / P4 / P2 |
Unified ISO precision tolerance standard |
|
Internal Clearance |
C1 / C2 / C3 / C4 / C5 |
C3 = increased clearance, standard for high-speed operation |
|
Contact Angle |
C(15°) / A(25°) / B(40°) |
Unified angle definition for angular contact bearings |
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Bearing Arrangement |
DB / DF / DT |
Back-to-back / Face-to-face / Tandem pairing |
|
Lubrication Feature |
W33 |
Outer ring groove + 3 oil holes for heavy-duty lubrication |
2. Brand-Specific Suffixes (One-to-One Replacement Only)
|
Function Type |
Specification |
SKF |
FAG |
NSK |
NTN |
|---|---|---|---|---|---|
|
Metal Shield |
Double-sided non-contact metal shielding |
2Z |
2ZR |
ZZ |
ZZ |
|
Rubber Seal
|
Double-sided contact rubber seal |
2RS1 |
2RSR |
DDU |
LLU |
|
Phenolic Cage |
Laminated phenolic resin, high-speed grade |
T / TN9 |
T-P / TVP2 |
TY / TYN |
- |
|
Nylon Cage |
Glass-fiber PA66, medium/high speed |
TN |
TVP |
TM |
- |
|
Brass Cage |
Solid brass, heavy load & high temperature |
M |
M1 |
MB |
- |
|
High-Speed Clearance |
Equivalent to C3 increased clearance |
C3 |
C3 |
CM |
- |
|
Low-Noise Grade |
Ultra-quiet precision spindle grade |
SP / UP |
SP / UP |
C7 / S7 |
- |
|
Outer Ring Guided |
Cage guided by outer ring for high stability |
GA |
OA |
A |
- |
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