At a glance
Deep-groove ball
Deep raceway grooves provide a general-purpose arrangement for radial and moderate axial duty.
Start here for compact general-purpose rotation where loads and speed remain inside the product limits.
Angular-contact ball
Offset raceways establish an angle for combined radial and axial load.
Start here for controlled axial stiffness, combined load or a paired precision arrangement.
Key differences
Typical design distinctions. The complete designation and current product specification take precedence.
Swipe the table horizontally to see both options →
| What to compare | Deep-groove ball | Angular-contact ball |
|---|---|---|
| Contact geometry | Primarily radial; operating angle changes under load | Specified nominal contact angle |
| Axial direction | Usually both directions | Single row primarily one direction |
| Pairing | Not inherently a matched set | DB, DF or tandem arrangements may be specified |
| Preload | Application-specific | Often part of matched-set selection |
| Mounting | Check fits and internal clearance | Check orientation, pair matching and axial setting |
| Common decision | General radial duty with some thrust | Combined load and required axial stiffness |
Before you choose
- Double-row angular-contact bearings have different axial behaviour from a single row.
- Do not combine arbitrary single bearings and assume a factory-matched preload.
- A bigger contact angle changes load distribution and speed/stiffness trade-offs.
Check the actual model
Search a full designation, inspect its technical data, then compare candidate records. Similar names or dimensions do not guarantee interchangeability.
Filters show recorded catalogue attributes. Open each candidate to confirm its exact specification.
A few things worth clarifying
Is angular contact always more accurate?
No. Accuracy is specified separately by tolerance class and manufacturing execution.
Can one angular-contact bearing take thrust both ways?
A conventional single-row design is intended for one direction; the arrangement must provide the opposite support.
Reference basis & limits
- SKF — Rolling bearings catalogue: angular contact ball bearings
- NSK — Single-row deep groove ball bearings: features and closure designations
Independent explanatory content; not a manufacturer endorsement or approval of a replacement. Verify current product data, fits, lubrication and operating conditions before applying a comparison.