71944 CD/P4A

71944 CD/P4A

These super-precision, high-capacity, single row angular contact ball bearings, with 15 degree 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 accuracyVery high load carrying capacityRelatively high speed and stiffness
Lähetä kysely
Keskustele nyt
Tuotteen esittely

Dimensions - 71944 CD/P4A

d

220 mm

D

300 mm

B

38 mm

d1

244.7 mm

d2

244.7 mm

D1

275.3 mm

r1,2

min.2.1 mm

r3,4

min.1 mm

a

54 mm

Abutment dimensions - 71944 CD/P4AAbutment dimensions - 71944 CD/P4A

da

min.231 mm

db

min.231 mm

Da

max.289 mm

Db

max.295 mm

ra

max.2 mm

rb

max.1 mm

dn

251.4 mm

C

221 kN

C0

300 kN

Pu

7.8 kN

 

4 300 r/min

Attainable speed for oil-air lubrication  

6 300 r/min

15 degree

Dw

25.4 mm

i

1

z

29

G

84 cm³

Preload and stiffness (back-to-back, face-to-face)
GA

850 N

 

224 N/µm

GB

1 700 N

Axial stiffness for preload B (sets of two brgs back-to-back or face-to-face)  

306 N/µm

GC

3 400 N

Axial stiffness for preload C (sets of two brgs back-to-back or face-to-face)  

434 N/µm

GD

6 800 N

Axial stiffness for preload D (sets of two brgs back-to-back or face-to-face)  

635 N/µm

f

1.28

f1

1

f2A

1

f2B

1.04

f2C

1.09

f2D

1.15

f

1

f0

16.5

 

Refer to Notes 1 and 2 below

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.

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.

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.

 

71944 CD/P4ATBTB 220 300 114
71944 CD/P4ATBTA 220 300 114
71944 CD/P4ADGB 220 300 76
71944 CD/P4ADGA 220 300 76
71944 CD/P4ADBD 220 300 76
71944 CD/P4ADBB 220 300 76
71944 CD/P4ADBA 220 300 76
71944 CD/P4A 220 300 38
71944 CD/HCP4ADGB 220 300 76
71944 CD/HCP4ADBB 220 300 76
71944 ACDGC/P4A 220 300 38
71944 ACDGB/P4A 220 300 38
71944 ACDGA/P4AL 220 300 38
71944 ACDGA/P4A 220 300 38
71944 ACD/P4AQBTA 220 300 152
71944 ACD/P4AQBCA 220 300 152
71944 ACD/P4ADGD 220 300 76
71944 ACD/P4ADGB 220 300 76
71944 ACD/P4ADGA 220 300 76
71944 ACD/P4ADBC 220 300 76
71944 ACD/P4ADBA 220 300 76
71944 ACD/P4A 220 300 38
7038 CDGA/P4A 190 290 46
7038 CD/P4ADGB 190 290 92
7038 CD/P4ADGA 190 290 92
7038 CD/P4A 190 290 46
7038 ACDGC/P4A 190 290 46
7038 ACDGA/P4A 190 290 46
7038 ACD/P4ATBTA 190 290 138
7038 ACD/P4AQBCC 190 290 184

Suositut Tagit: 71944 cd/p4a, 71944 cd/p4a suppliers

Saatat myös pitää

Lähetä kysely

whatsapp

Puhelin

Sähköposti

Tutkimus