750mm 618/750 High Precision Deep Groove Ball Bearing

• Contact Angle：Customized
• Aligning：Aligning Bearing
• Separated：Separated
• Rows Number：Single
• Load Direction：Axial & Radial
• Material：Bearing Steel

=== Base Info ===

• Model NO.：618,750
• Transport Package：Carton Box
• Specification：Customized
• Trademark：HBB
• Origin：Luoyang, China
• Production Capacity：3000000 Yearly

=== Description ===

Basic Info.

Model NO. 618/750 Transport Package Carton Box Specification Customized Trademark HBB Origin Luoyang, China Production Capacity 3000000 Yearly

Product Description

HBB High Accuracy Ball Bearings


A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.
The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.

Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.




Deep groove ball bearings, angular contact ball bearings are the typical rolling bearing, widely used can bear radial load and axial load, two-way is suitable for high speed rotation and requiring low noise, low vibration, steel plate with dust cover or rubber sealing ring seal type prefill the grease inside the bearing, outer ring snap ring or flange bearing axial positioning, easy and convenient for the installation of the shell, the biggest duty bearing size is the same with the standard bearings, but inside and outside the circle and a filling slot, increase the loading quantity, raise the rated load.



Different types and loading directions:

Deep groove ball bearing:
Deep groove ball bearings are the most common type of rolling bearings. Mainly bear radial load, but also can bear radial load and axial load. When it only bears radial load, the contact Angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of angular contact bearing and can bear a large axial load. The friction coefficient of the deep groove ball bearing is very small, and the limit speed is also very high.

Angular contact ball bearing:
An angular contact ball bearing uses axially asymmetric races. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that acts to separate the races axially. So the angle of contact on the inner race is the same as that on the outer race. Angular contact bearings better support combined loads (loading in both the radial and axial directions) and the contact angle of the bearing should be matched to the relative proportions of each. The larger the contact angle (typically in the range 10 to 45 degrees), the higher the axial load supported, but the lower the radial load. In high speed applications, such as turbines, jet engines, and dentistry equipment, the centrifugal forces generated by the balls changes the contact angle at the inner and outer race. Ceramics such as silicon nitride are now regularly used in such applications due to their low density (40% of steel). These materials significantly reduce centrifugal force and function well in high temperature environments. They also tend to wear in a similar way to bearing steel-rather than cracking or shattering like glass or porcelain.


Structural differences:

Deep groove ball bearings and angular contact ball bearings with the same inside and outside diameters and widths have the same inner ring size and structure, while the outer ring size and structure are different:
1. Deep groove ball bearing has double shoulder on both sides of outer ring channel, while angular contact ball bearing is generally single shoulder.
2. Deep groove ball bearing outer ring groove curvature and angular contact ball is different; the latter is often greater than the former.
3. The difference between the outer ring groove position of deep groove ball bearing and the angular contact ball bearing is that the specific value of the non-central position is considered in the design of angular contact ball bearing, which is related to the degree of contact Angle.

Technical Specifications:



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