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Ningbo NBVO Seiko Bearing Co., Ltd. Home / News / Industry News / What is special about the deep groove raceway design between the inner and outer rings and the steel balls of a single-row deep groove ball bearing?

What is special about the deep groove raceway design between the inner and outer rings and the steel balls of a single-row deep groove ball bearing?

Ningbo NBVO Seiko Bearing Co., Ltd. 2024.10.15
Ningbo NBVO Seiko Bearing Co., Ltd. Industry News

1. Design of deep groove raceway
Curvature radius:
The radius of the groove interface on the inner and outer rings is slightly larger than the radius of the steel ball, presenting an arc shape. This design allows the steel ball to roll smoothly in the groove while ensuring good fit. The radius of curvature of the inner and outer grooves is usually 51.5%~53% of the ball diameter. This design optimizes the load distribution and rolling contact performance of the Single Row Deep Groove Ball Bearings.
Raceway depth:
The design of the deep groove raceway provides enough space for the steel ball to withstand a certain degree of axial load while bearing radial load. The deep groove raceway plus the great fit between the raceway and the steel ball enable the bearing to withstand a certain bidirectional axial load while bearing radial load.

2. Function of deep groove raceway
Carrying capacity:
The design of the deep groove raceway enhances the bearing's carrying capacity, enabling it to withstand larger radial and axial loads. As the radial clearance increases, the axial carrying capacity of the bearing also increases.
Friction and wear:
The design of the deep groove track helps reduce friction and wear because the steel balls roll more smoothly in the track. The appropriate ball diameter and number of balls can exist within the bearing pitch circle, further reducing friction losses.
Stability and reliability:
The design of the deep groove track improves the stability and reliability of the bearing, enabling it to maintain good operating conditions under various working conditions. The dimensional stability of the bearing has been improved, reducing dimensional changes caused by temperature changes.

3. Adaptability of deep groove track
Wide application areas:
The design of the deep groove track enables single-row deep groove ball bearings to be widely used in various mechanical systems, such as automobiles, tractor gearboxes, machine tool gearboxes, etc. The bearings are highly adaptable and can meet the use requirements under different working conditions.
Diversified structural forms:
In addition to general open bearings, closed structural bearings with single-sided dust covers, double-sided dust covers, single-sided seals and double-sided seals can also be provided. The design of the seals and dust covers can prevent foreign matter from entering the bearing and prevent lubricating oil leakage, further improving the reliability and service life of the bearing.