61903-2Z | Deep Groove Ball Bearing - Double Shielded, Single Row | SKF (2024)

FAQs

What is single row deep groove ball bearing? ›

Single-row deep groove ball bearings are the most common type of rolling bearing. The raceway grooves in the inner and outer rings form a circular arc with a radius slightly larger than that of the balls.

For the same bore and outside diameter, double row bearings are slightly wider than single row bearings in the 62 and 63 series, but have a considerably higher load carrying capacity. Double row deep groove ball bearings are only available as open bearings (without seals or shields).

This 61903 2RS1 bearing is a Sealed Thin Section Deep Groove Radial Ball Bearing with a standard radial internal clearance. The bearing's dimensions are 17x30x7.

Single row ball bearings have one row of balls and are suitable for applications where radial and axial loads are relatively low. Double row ball bearings have two rows and are used in applications where higher loads are expected or where higher levels of reliability are required.

Sealed bearings (-RS or 2RS) provide protection of the inner bearing space better than shielded bearings (-Z or -2Z). Due to the contact between the sealing lip and the inner ring of the bearing, the inner space of the bearing is better protected; on the other hand, these bearings can be operated at lower speeds.

Deep groove ball bearings are the most widely used bearing type and are particularly versatile. They have low friction and are optimized for low noise and low vibration which enables high rotational speeds.

There is problem of alignment in deep groove ball bearings. Explanation: It is not self-aligning. 3. Deep groove ball bearing has immense rigidity.

Deep groove ball bearings can carry a thrust load up to 10% of the bearings rated load. Single row angular contact ball bearings can carry radial as well as thrust loads (thrust load in only one direction).

Bore diameter: 10 mm to 240 mm. Outer diameter: 22 mm to 320 mm. Width: 6 mm to 38 mm. Shielding and Seals: Both metal shields (ZZ) and rubber seals (2RS) can be added to 61900 series bearings.

How do I know what size bearings I need? ›

Determining the size of a ball bearing can be done by measuring its outer diameter (OD), bore size (ID), and width. These measurements are usually expressed in millimetres (mm). Using a calliper or a micrometer, you can accurately measure these dimensions.

The bearing's dimensions are 55x80x13.

Some disadvantages of ball bearings are their lower load capacity when compared to roller bearings. Ball bearings are prone to misalignment and increased sensitivity to shock loads. Also, ball bearings are less capable of handling heavy axial loads.

Roller bearings, with their larger contact area, are ideal for applications with heavy radial loads. Ball bearings have a lower load capacity than roller bearings due to the smaller contact area. Ball bearings exhibit less deformation under load, making them more suitable for precision applications.

Bearings with a flange on the outer ring are easier to mount in a housing then standard bearings as there is much less reliance on the housing tolerance to hold the bearing securely. The flange helps to prevent the bearing from moving in an axial direction when exposed to axial loads or vibration.

Ball bearings may be shallow groove or deep groove. The 'groove' is the depth of the raceway into which the balls fit. Deep groove single row ball bearings are also known as Conrad bearings. Deep groove ball bearings can carry higher radial and axial loads than their shallow groove ball bearing counterparts.

Single row deep groove ball bearings come in three numerical series representing the size and load capacity of each. They are: 6000 Series - Extra Light Ball Bearings – Ideal for limited space applications such as medical diagnostic equipment, flow meters, and anemometers.

The deep-grooved build of radial ball bearings allow for higher rotation speeds and are able to support high radial and thrust loads. Self-Aligning - Self-aligning bearings contain a double row of balls and can be produced with either tapered or straight bores. This bearing is created with the least amount of friction.