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{"title":"71903 ACD\/HCP4A Super Precision Angular Contact Ball Bearing with 17 mm Bore","imgUrl":"https:\/\/img.chinax.com\/nimg\/99\/b5\/7991cdc0a85ecd064ed090914835-200x200-1\/71903_acd_2fhcp4a_super_precision_angular_contact_ball_bearing_with_17_mm_bore_diameter_p4a_precision_grade_and_hybrid_ceramic_bal.jpg","attrs":{"Structure":"Angular Contact","Delivery Time":"2-4 weeks","Part Number":"71903 ACD\/HCP4A Angular Contact Ball Bearing","Lubrication":"Grease,Oil"}}
{"title":"71910 ACD\/P4A Super Precision Single Row Angular Contact Ball Bearing with","imgUrl":"https:\/\/img.chinax.com\/nimg\/66\/4d\/846e0eaeb6ee849f1df52890ce7a-200x200-1\/71910_acd_2fp4a_super_precision_single_row_angular_contact_ball_bearing_with_50x72x12_mm_dimensions_and_high_static_load_capacity.jpg","attrs":{"Structure":"Angular Contact","Lubrication":"Grease,Oil","Part Number":"71910 ACD\/P4A Angular Contact Ball Bearing","Brand Name":"CNBTZC or OEM"}}
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7008 CB/HCP4A Super Precision Single Row Angular Contact Ball Bearing
7008 CB/HCP4A 40×68×15 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Ceramic Balls High Speed
Super-precision, high-speed B design, single row angular contact ball bearing. The 7008 CB/HCP4A bearing features a bore diameter of 40 mm, outside diameter of 68 mm, and width of 15 mm. With precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
Part Number
7008 CB/HCP4A
Bearing Type
Angular Contact
Measurement Unit
Metric
Dimensions
Inner Bore Diameter (d)
40 mm
Inner Bore Diameter Tolerance
-0.006mm to 0
Outer Bore Diameter (D)
68 mm
Outer Bore Diameter Tolerance
-0.007mm to 0
Width (B)
15 mm
Width Tolerance
-0.2mm to 0
Specifications
Contact Angle
15° (25°, 40° Available)
Material
Hybrid (Chrome Steel Rings, Ceramic Balls)
Cage Material
Phenolic
Number of Rows
1 Single Row
Seal Type
Open
Temperature Range
-30°C to 150°C
Lubrication
Grease or Oil
Tolerance Class
P4A better than P4
Weight
0.20 kg
Matched Arrangement
No
Universal Matching Bearing
No
Preload
Not applicable
Load and Speed
Dynamic Radial Load
7410 N
Static Radial Load
5600 N
Reference Speed For Grease (r/min)
34,000 rpm
Limiting Speed For Oil (r/min)
53,000 rpm
Performance Features of 7008 CB/HCP4A Bearing
The 7008 CB/HCP4A bearing is engineered for high-performance applications, featuring P4A grade precision and an angular contact design for handling significant radial and axial loads. Optimized for high-speed operation with minimal vibration, it offers smooth, quiet performance and is constructed from premium materials to ensure durability and longevity. This bearing maintains high precision during operation, making it ideal for critical applications in machine tools, automation, aerospace, medical devices, and other industries requiring exceptional accuracy and reliability.
Applications of the 7008 CB/HCP4A Bearing
The 7008 CB/HCP4A high-precision angular contact ball bearing is designed for high-speed and precision-demanding applications, such as machine tool spindles and motorized spindles. It also excels in ball screw support systems for CNC machines, industrial automation equipment like robot joints requiring ultra-high precision (P4A tolerance), special condition equipment needing oil-air or direct lubrication for reduced temperature rise, and can be adapted for higher speed or high-temperature environments with hybrid ceramic balls (e.g., aerospace testing equipment). This bearing's advanced features make it essential for enhancing performance and reliability across a range of demanding industries.
Certifications & Services
CERTIFICATE
RoHS & REACH, IATF16949:2016
Feature
High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Beining Intelligent Technology (Zhejiang) Co., Ltd. (formerly Ningbo Beining Bearing Co., Ltd.), established in February 2013, is a modern high-tech enterprise specializing in the research, development, design, and precision manufacturing of high-performance bearings.
Operating from a 30,000 m²...
Beining Intelligent Technology (Zhejiang) Co., Ltd. (formerly Ningbo Beining Bearing Co., Ltd.), established in February 2013, is a modern high-tech enterprise specializing in the research, development, design, and precision manufacturing of high-performance bearings.
Operating from a 30,000 m²...