DISCLAIMER

Characteristics of straight ball bearings

Straight ball bearings are a basic category among ball bearings, distinguished by their versatility and wide range of applications. They come in two main variants:

• Single-row straight ball bearings,
• Double-row straight ball bearings.

Single-row straight ball bearings

Features and applications

Single-row ball bearings are extremely versatile and used in many industries. Their features include:
✔ Availability in various sizes and designs,
✔ Round ring raceways with radii larger than the balls,
✔ Ability to support both radial and axial loads in both directions,
✔ Low torque, making them ideal for high-speed applications and minimal power loss.

Single-row bearing design

These bearings come in open versions, as well as with steel shields or rubber seals located on one or both sides. Sealed versions are lubricated with grease at the factory and can be fitted with circlips.

The most common models have a stamped steel cage and are double-sealed. The lithium-based grease filling provides excellent corrosion protection and allows operation at temperatures from -30°C to +110°C. Lubrication is for life, eliminating the need for additional maintenance. The amount of lubricant is adjusted according to the size of the bearing and usually occupies 25% to 35% of its free space.

Double-row straight ball bearings

Features and applications

Double-row bearings are characterized by:
✔ Increased load carrying capacity due to two rows of balls,
✔ Ability to support both radial and axial loads,
✔ Adaptability to high-speed operation,
✔ Availability in a variety of designs, including non-contact shields.

Double-row bearing design

Many models have steel shields (so-called non-contact seals) for effective protection against contamination. These bearings can be equipped with single-sided or double-sided seals.

It is worth noting that there is a risk of grease leakage at high speeds of the outer ring. Therefore, they are mainly used where the inner ring rotates, which minimizes this risk.

Straight ball bearings, both single-row and double-row, are indispensable components in many industrial applications. With a variety of designs, seals and high-speed capabilities, they provide reliability, durability and optimum performance.