Bearings Name	New Model	Old Model:	ID(mm)	OD(mm)	Width(mm)	Cr(kN)	Cor(kN)	Grease Lubrication Speed(r/min)	Oil Lubrication Speed(r/min)	Weight(kg)
61903-2RS deep groove ball bearing	61903-2RS	1180903	17	30	7	-	-	-	-	-
61903-2RSV deep groove ball bearing	61903-2RSV	-	17	30	7	-	-	-	-	0.018
61903-2RS/p6 bearings SKF,NSK,NTN,FAG,NACHI,KOYO	61903-2RS/P6	E1180903	17	30	7	-	-	-	-	0.000
61903-2RS/p5 bearings SKF,NSK,NTN,FAG,NACHI,KOYO	61903-2RS/P5	D1180903	17	30	7	-	-	-	-	0.000

The 61903 2RS bearing is a specific type of deep groove ball bearing. Here are some details about the 61903 2RS bearing:

Dimensions: The 61903 2RS bearing typically has a bore diameter of 17 millimeters, an outer diameter of 30 millimeters, and a width of 7 millimeters.

Performance: Deep groove ball bearings, including the 61903 2RS bearing, are designed to handle both radial and axial loads. They have deep raceway grooves that allow for high-speed operation and low friction. The 61903 2RS bearing can accommodate light to moderate radial loads and can also handle axial loads in both directions.

Sealing: The "2RS" in the bearing designation indicates that the bearing has two rubber seals on both sides. These seals provide protection against contaminants, such as dust and moisture, and help retain lubrication within the bearing.

Material: Deep groove ball bearings are commonly made from high-quality steel, such as chrome steel (AISI 52100) or stainless steel. These materials provide durability and resistance to wear and corrosion.

Precision: The precision of the 61903 2RS bearing can vary depending on the specific application requirements. Common precision classes for deep groove ball bearings include ABEC-1, ABEC-3, ABEC-5, and ABEC-7. Higher precision classes offer tighter tolerances and smoother operation.

Application: The 61903 2RS bearing is commonly used in various applications, including bicycles, electric motors, pumps, skateboards, and industrial machinery. Its small size and ability to handle both radial and axial loads make it suitable for applications where space is limited.

Brand: There are several reputable bearing manufacturers that produce 61903 2RS deep groove ball bearings, including SKF, NSK, NTN, FAG, and Timken, among others. These brands are known for their quality and reliability.

Features: Some common features of the 61903 2RS bearing include deep raceway grooves for high-speed operation, low friction, and the ability to handle both radial and axial loads. The rubber seals provide added protection against contaminants and retain lubrication.

It's important to note that specific details, such as load ratings, operating temperatures, and lubrication requirements, may vary depending on the manufacturer and the specific application. It's always recommended to consult the manufacturer's documentation or technical specifications for precise information regarding the 61903 2RS deep groove ball bearing.