71968 CDMA/P4A

71968 CDMA/P4A

These super-precision, high-capacity, single row angular contact ball bearings, with 15° contact angle, accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures. Very high running accuracy Very high load carrying capacity Relatively high speed and stiffness
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Product Introduction

Dimensions - 71968 CDMA/P4A

Dimensions

Bore diameter 340 mm
Outside diameter 460 mm
Width 56 mm
Contact angle 15 °

Performance

Basic dynamic load rating 390 kN
Basic static load rating 670 kN
Attainable speed for grease lubrication 2 400 r/min
Attainable speed for oil-air lubrication 3 800 r/min

Properties

Contact type Normal contact (two-point contact)
Number of rows 1
Ring type One-piece inner and outer rings
Design High-capacity D
Universal matching bearing No
Matched arrangement No
Matched condition (axial clearance/ preload) Not applicable
Tolerance class P4A
Material, bearing Bearing steel
Coating Without
Sealing Without
Lubricant None

Logistics

Product net weight 25.4 kg
eClass code 23-05-08-04
UNSPSC code 31171531

 

Characteristics of Precision Contact Bearings

Precision contact bearings are engineered with exceptional accuracy to ensure optimal performance in various mechanical applications. These bearings feature tight dimensional tolerances and precise geometric shapes, which contribute to their high rotational accuracy and low noise levels. The materials used in their construction, often high-quality steels or ceramics, are chosen for their durability and resistance to wear, ensuring long service life even under demanding conditions. Precision contact bearings typically include configurations such as ball bearings, roller bearings, and needle bearings, each designed to address specific load and speed requirements. Their design also incorporates advanced lubrication systems to reduce friction and heat generation, thereby enhancing efficiency and reliability.

Advantages of Precision Contact Bearings

The primary advantage of precision contact bearings lies in their ability to sustain high precision under various operating conditions. They offer superior load-carrying capacity, making them ideal for applications requiring heavy loads while maintaining high speeds. The precision of these bearings minimizes vibration and noise, which is critical in sensitive environments such as medical equipment or precision instruments. Additionally, their robust construction ensures reliability and longevity, reducing maintenance costs and downtime. The use of advanced materials and lubrication techniques further enhances their performance, providing resistance to corrosion and wear. This combination of features makes precision contact bearings an indispensable component in precision engineering and high-performance machinery.

Applications of Precision Contact Bearings

Precision contact bearings are widely applied in a variety of industries due to their exceptional performance characteristics. In the automotive sector, they are crucial for the smooth operation of engines, transmissions, and suspension systems, ensuring reliability and fuel efficiency. Aerospace applications utilize these bearings for their ability to withstand extreme conditions and high speeds, contributing to the safety and efficiency of aircraft. Industrial machinery, such as CNC machines and robotics, benefit from the high precision and durability of these bearings, enabling consistent and accurate operations. Medical devices, which demand minimal noise and vibration, also rely on precision contact bearings to ensure patient comfort and device effectiveness. Overall, the versatility and reliability of precision contact bearings make them essential in numerous high-precision and high-performance applications across different sectors.

NO. d[mm] D[mm] B[mm]
71972 CDMA/P4A 360 480 56
71972 ACDMA/P4A 360 480 56
71968 CDMA/P4A 340 460 56
71960 CDMA/P4A 300 420 56
71960 ACDMA/P4A 300 420 56
7052 ACD/P4ADGB 260 400 130
7052 ACD/P4A 260 400 65
71956 CDGA/P4A 280 380 46
71956 CD/P4ATBTA 280 380 138
71956 CD/P4A 280 380 46
71956 CD/HCP4A 280 380 46
71956 ACDGA/P4A 280 380 46
71956 ACD/P4ATGB 280 380 138
71956 ACD/P4ATBTB 280 380 138
71956 ACD/P4ADGA 280 380 92
71956 ACD/P4A 280 380 46
71956 ACD/HCP4ADGA 280 380 92
71952 CDGA/P4A 260 360 46
71952 CD/P4ADBB 260 360 92
71952 CD/P4ADBA 260 360 92
71952 CD/P4A 260 360 46
71952 ACDGB/P4A 260 360 46
71952 ACDGA/P4AL 260 360 46
71952 ACDGA/P4A 260 360 46
71952 ACD/P4ATBTB 260 360 138
71952 ACD/P4AQBCA 260 360 184
71952 ACD/P4ADGA 260 360 92
71952 ACD/P4ADBC 260 360 92
71952 ACD/P4ADBB 260 360 92
71952 ACD/P4ADBA 260 360 92

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