Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of angular contact ball bearings 7001adfp5 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.
Bearing No. 7001ADFP5-Angular Contact Ball Bearings
Technical Data
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Inside Ø (mm): |
12 |
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Outside Ø (mm): |
28 |
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Width (mm): |
8 |
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Tolerance for inside-Ø (mm): |
0/-0,005 |
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Tolerance for outside-Ø (mm): |
0/-0,006 |
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Tolerance for width (mm): |
0/-0,12 |
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Tolerance for shaft da (mm): |
0,18/-0,18 |
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Contact Angle: |
30° |
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Rows Of Balls: |
Single Row |
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Seal: |
Non |
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Ring Material: |
GCr15, 100Cr6, SUJ2 |
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Rolling Element Material: |
Steel |
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Cage Material: |
Polyamide |
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Tolerance Class: |
P5, ABEC5 |
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Lubrication: |
Oil |
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Product weight: |
0,021 kg |
Precision Grade P5 Tolerance Manufactured to ISO P5 super-precision dimensional and geometric standards, this bearing delivers ultra-low rotational runout and consistent precision. It minimizes vibration and positional deviation during high-speed operation, fully meeting the accuracy requirements of precision automated equipment and miniature spindle systems.
30° A-Type Contact Angle Design Adopts standard 30° contact angle structure, achieving an optimal balance of radial load capacity, axial stiffness and operating speed. Compared with 15° low-contact-angle models, it provides stronger bidirectional axial bearing capacity, while maintaining excellent high-speed stability for light and medium load working conditions.
DF Face-to-Face Matched Set Factory pre-matched DF (face-to-face) paired structure features large overturning moment resistance and uniform load distribution. It effectively accommodates misalignment and deflection during equipment operation, reduces axial clearance, and ensures stable rotary accuracy. The integral paired design avoids assembly errors caused by on-site manual matching.
Compact Miniature Size Structure Standard dimension: 12mm × 28mm × 8mm (bore × outer diameter × width). The compact and lightweight design perfectly fits narrow installation spaces of miniature precision machinery, servo accessories and small rotating components, realizing high-precision transmission in limited space.
High Rigidity & Stable Operation Optimized internal raceway geometry and high-purity bearing steel material enhance overall structural rigidity. The bearing runs smoothly with low noise and low vibration, resisting cyclic load and slight impact during continuous high-frequency operation, ensuring long-term operational stability of precision equipment.
Dual Load Bearing Capacity Capable of bearing simultaneous radial and bidirectional axial composite loads. The DF paired configuration greatly improves structural stability, making it ideal for precision transmission scenarios requiring strict motion accuracy and anti-deflection performance.
Wide Adaptability for Precision Applications Suited for high-speed miniature spindles, precision automation sliding tables, small servo motors, instrument rotating parts, precision testing equipment and other light-duty high-precision working scenarios. Compatible with grease and low-speed oil lubrication, with low maintenance cost and long service life.
Applications
- Angular contact ball bearings usually used for small CNC spindle, engraving machine spindle, indexing head, high-speed tool holder support; core for precision feed screw end support and also high-speed Small Motors & Automation.
- High-frequency miniature spindle motor, stepping/servo motor shaft, precision robot joint, automated test fixture, optical focusing mechanism.
- Microscope, camera zoom component, precision measuring instrument rotary part, lab centrifugal equipment.
- Mini high-speed pump, small turbo machinery, miniature gearbox, welding auxiliary equipment, small automotive auxiliary transmission shaft, precision textile machinery spindle.
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.
Product dimensional range: Bore diameter spanning 3 mm to 300 mm Available precision grades: P2 and P4 ultra-precision specifications Annual output: 3 million precision bearing sets manufactured within our streamlined intelligent workshop Testing hardware: We have invested more than 3 million RMB in top-tier global precision inspection equipment Digital construction: We have fully rolled out professional bearing design software MESYS, alongside ERP, MES, WMS, SPC real-time quality control and OA office management systems. We have built a standardized benchmark factory featuring digital intelligent manufacturing.
2. Huzhou Factory
In 2021, our deep groove ball bearing manufacturing plant completed its relocation from Hangzhou to Huzhou. The newly built production site covers an area of 10,000 square meters with a total team of 75 members, focusing on independent research & development as well as customized manufacturing of high-performance deep groove ball bearings.
To deliver bearings with stable precision and outstanding reliability, we run mature technical development workflows and comprehensive quality control systems.
Quality Control Department: A team of 15 quality specialists (20% of total staff), including two senior quality engineers, manages the whole quality chain: incoming raw material examination, inline production supervision, and final finished bearing inspection before shipment.
Certificates
Exhibition
FAQ
Q1: Why is 7001ADF P5 widely used for miniature ball screw support ends?
A: The 7001A features a 30° larger contact angle, which delivers higher axial stiffness and stronger axial load capacity than standard 15°/25° bearings. Matched with DF face-to-face pairing and P5 high precision grade, it provides ultra-low runout, stable positioning accuracy and excellent composite load resistance, perfectly matching the high-precision feeding requirements of miniature linear modules and ball screw transmission systems.
Q2: Why choose DF pairing instead of DB pairing for ball screw support?
A: DF face-to-face pairing offers superior self-aligning performance. It compensates minor shaft deflection, housing machining errors and assembly misalignment commonly found in small ball screw structures. It effectively avoids preload over-tightening and thermal locking during high-speed reciprocating movement. Meanwhile, DF structure saves axial installation space, which is ideal for compact miniature screw support units.
Q3: What load characteristics does DF paired 7001ADF undertake on ball screws?
A: This paired set mainly bears combined radial load + bidirectional alternating axial load. The 30° contact angle greatly enhances axial thrust resistance to offset screw recoil and positioning impact during rapid acceleration and deceleration. It is designed for light radial load and frequent axial load working conditions, ensuring smooth feeding and precise repeated positioning.
Q6: How do you guarantee bearing quality consistency?
A: We implement full-process quality control, including incoming material inspection, in-process dimensional monitoring, noise testing, precision detection and final batch sampling inspection.
Q7: What is your production lead time?
A: Standard models have sufficient stock with fast delivery. Customized bearings take 7–15 working days according to order quantity and technical requirements.
Q8: Which bearing is best for high-speed spindle equipment? A: Precision P4 spindle bearings and hybrid ceramic bearings are the optimal choice for ultra-high-speed spindles, featuring high speed limit, low heat and high precision retention.
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