
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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