Deep Groove Ball Bearings
Low-Friction Bearings for High-Speed Radial and Combined LoadsBearing Type: Deep Groove Ball Bearing
Product Category: Large Size Ball Bearings
Primary Load: Radial load
Axial Load: Limited axial load in both directions
Locating Function: Bidirectional axial location
Friction: Low friction coefficient.
Technical Specifications
| Specification | Details |
|---|---|
| Bearing Type | Deep Groove Ball Bearing |
| Product Category | Large Size Ball Bearings |
| Primary Load | Radial load |
| Axial Load | Limited axial load in both directions |
| Locating Function | Bidirectional axial location |
| Friction | Low friction coefficient |
| Speed Capability | High limiting speed |
| Permissible Misalignment | 2-10 arcmin; bearing life may be affected |
| Impact Load | Not recommended |
| Heavy Load | Not recommended |
| Cage Options | Machined brass, solid steel or reinforced nylon 66 |
Deep Groove Ball Bearings Overview
Deep groove ball bearings are among the most widely used rolling bearings. Their simple structure, ease of installation and reliable operation make them suitable for a broad range of machinery. They primarily carry radial loads and can also support limited axial loads when the shoulder geometry and radial clearance are appropriately selected.
Compared with other bearing types of similar size, deep groove ball bearings provide a low friction coefficient and high limiting speed. Within their axial clearance, they can limit shaft or housing displacement in both directions and therefore act as bidirectional locating bearings.
Low Friction and High-Speed Performance
The deep raceway geometry provides stable ball guidance and efficient rolling contact. This helps reduce frictional losses and heat generation, supporting smooth operation at relatively high rotational speeds under suitable load and lubrication conditions.
- Simple and reliable structure
- Low friction coefficient
- High limiting speed
- Easy installation and use
Bidirectional Location and Load Limitations
The bearing can carry radial load together with limited axial load in either direction and can locate a shaft axially on both sides. It has a small self-aligning allowance of about 2-10 arcminutes, but misalignment may shorten service life. Deep groove ball bearings are not impact-resistant and are not recommended for heavy-load duty.
- Primarily designed for radial load
- Limited axial load in both directions
- Avoid shock and heavy-load duty
Deep groove ball bearing structure and principal dimensions
Bearing Structure and Cage Options
| Option | Configuration | Selection Guidance |
|---|---|---|
| Open Design | Deep-groove inner and outer raceways | Standard arrangement for high-speed radial-load applications |
| Brass Cage | Machined solid brass cage | Common CHG cage configuration |
| Steel Cage | Solid steel cage | Metallic alternative selected by operating requirements |
| Nylon 66 Cage | Reinforced engineering-plastic cage | Cage material is identified by the bearing suffix |
Performance and Mounting Characteristics
After mounting, the bearing can provide bidirectional axial location within its designed clearance. Shaft and housing alignment should be controlled carefully: although slight inclination may be tolerated, excessive misalignment changes the contact condition and can reduce bearing life. Correct fits, lubrication and load control are essential for high-speed service.
Permissible misalignment : 2-10 arcmin (bearing life may be reduced )
Typical Applications
- Automotive systems
- Tractors and agricultural machinery
- Machine tools
- Electric motors
- Pumps
- Textile machinery
