Single Row Deep Groove Ball Bearings 61903-2Z

The 61903-2Z is a compact single-row deep groove ball bearing, measuring 17mm by 30mm by 7mm, crafted from sturdy chrome steel for reliable performance. It handles radial loads up to 1039 lbf and spins smoothly at speeds up to 26,000 RPM.

Shielded on both sides, it keeps grease in and dirt out, making it low-maintenance. The stainless steel cage adds durability, ensuring long service life even in demanding conditions.

With a temperature range of -30°C to 120°C, it’s versatile for various environments. Its P6 tolerance class offers precision, ideal for applications needing consistent performance.

Weighing just 18 grams, it’s lightweight yet robust. Perfect for small motors, pumps, or gearboxes where space is limited but reliability is key. Compliant with RoHS and REACH standards.

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Description

Features

Application

Q&A

Product Parameters

Part Number 61903-2Z
Brand TFL
Interchangeable SKF
System of Measurement Metric
For Load Direction Radial
Construction Single Row
Bearing Type Ball
Seal Type Shielded
Tolerance Class P6
Radial Clearance Trade No CN
Bore Dia 17 mm
Bore Dia Tolerance -0.007mm to 0
Outer Dia 30 mm
Outer Dia Tolerance -0.008mm to 0
Width 7 mm
Width Tolerance -0.12mm to 0
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Stainless Steel
Lubrication Grease
REACH Compliant
Temperature Range -30° to 120 °C
Dynamic Radial Load 1039 lbf
Static Radial Load 573 lbf
Max Speed 26000 rpm
Weight 0.018 kg
price（$） 9.855

Single Row Deep Groove Ball Bearings 61903-2Z dimension drawing

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Features

How Does 61903-2Z Bearing Reduce Friction?

61903-2Z Bearing features a single-row deep groove design, optimised for smooth radial load handling.
The shielded construction helps keep contaminants out while retaining lubrication for reduced friction.
Made from chrome steel rings and balls, it offers reliable performance with a dynamic radial load capacity of 1039 lbf.
Its P6 tolerance class ensures precise operation, suitable for high-speed applications up to 26,000 rpm.

Application

Essential Roles of 61903-2Z Bearing
61903-2Z Bearing is commonly used in small electric motors, where its shielded design keeps out dust and debris. The compact size makes it ideal for tight spaces without sacrificing performance.

Where Is 61903-2Z Bearing Used?
You’ll often spot 61903-2Z Bearing in household appliances like washing machines and fans. Its grease lubrication ensures quiet operation, perfect for everyday use.

Built for Heavy-Duty Use: 61903-2Z Bearing
In industrial settings, 61903-2Z Bearing handles radial loads in conveyor systems and pumps. The chrome steel construction offers durability even in demanding conditions.

Automotive vs Aerospace: Applications of 61903-2Z Bearing
While 61903-2Z Bearing fits well in car alternators, its precision also suits small aerospace components. The P6 tolerance ensures reliable performance across different environments.

Perfect Fit for Automation: 61903-2Z Bearing
61903-2Z Bearing works smoothly in robotic arms and 3D printers. Its low friction and high-speed capability make it a go-to for automated systems.