S7028 ACD/P4A

S7028 ACD/P4A

These super-precision, high-capacity, single row angular contact ball bearings, with 25 degree contact angle, with seals, 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 stiffnessNon-contact sealsIntegral sealing prolongs bearing service life
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Dimensions - S7028 ACD/P4A

d

140 mm

D

210 mm

B

33 mm

d1

161.6 mm

d2

161.6 mm

D2

193.1 mm

r1,2

min.2 mm

r3,4

min.1 mm

a

57.5 mm

Abutment dimensions - S7028 ACD/P4A

da

min.149 mm

da

max.161 mm

db

min.149 mm

db

max.161 mm

Da

max.201 mm

Db

max.205 mm

ra

max.2 mm

rb

max.1 mm

C

146 kN

C0

156 kN

Pu

5.1 kN

 

5 600 r/min

25 degree

Dw

22.225 mm

i

1

z

22

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

900 N

 

364 N/µm

GB

1 800 N

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

477 N/µm

GC

3 600 N

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

633 N/µm

GD

7 200 N

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

856 N/µm

f

1.16

f1

0.99

f2A

1

f2B

1.02

f2C

1.05

f2D

1.08

f

1

e

0.68

Y2

0.87

Y0

0.38

X2

0.41

Axial load factor (back-to-back, face-to-face) Y1

0.92

Axial load factor (back-to-back, face-to-face) Y2

1.41

Axial load factor (back-to-back, face-to-face) Y0

0.76

Radial load factor (back-to-back, face-to-face) X2

0.67

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.

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S71930 ACDGA/HCP4A 150 210 28
S71930 ACD/P4ADBB 150 210 56
S71930 ACD/P4A 150 210 28
S71930 ACD/HCPA9AQGA 150 210 112
S71930 ACD/HCP4ATGA 150 210 84
S7028 CD/P4ATBTA 140 210 99
S7028 CD/P4AQBCC 140 210 132
S7028 CD/P4AQBCA 140 210 132
S7028 CD/P4A 140 210 33
S7028 ACDGA/P4A 140 210 33
S7028 ACD/P4ATBTA 140 210 99
S7028 ACD/P4ADGC 140 210 66
S7028 ACD/P4ADGA 140 210 66
S7028 ACD/P4A 140 210 33
71930 CDGC/P4A 150 210 28
71930 CDGA/P4A 150 210 28
71930 CDGA/HCP4A 150 210 28
71930 CD/P4ATBTA 150 210 84
71930 CD/P4ADGC 150 210 56
71930 CD/P4ADGB 150 210 56
71930 CD/P4ADGA 150 210 56
71930 CD/P4ADBA 150 210 56
71930 CD/P4A 150 210 28
71930 CD/HCP4A 150 210 28
71930 ACDGC/P4A 150 210 28
71930 ACDGC/HCP4A 150 210 28
71930 ACDGA/P4A 150 210 28
71930 ACDGA/HCP4A 150 210 28

Beliebte label: s7028 acd/p4a, s7028 acd/p4a suppliers

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