Single Row Deep Groove Ball Bearings 61903-2RZ

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

Sealed on both sides, it keeps grease in and dirt out, making it low-maintenance. The stainless steel cage adds durability, ensuring reliable performance in various conditions.

With a temperature range of -30°C to 120°C, it’s suitable for demanding environments. Its P6 tolerance class offers precision for applications needing tight fits.

Ideal for small motors, pumps, or machinery where space is limited. Compliant with RoHS and REACH standards, it’s a safe and versatile choice. Weighing just 0.017kg, it’s lightweight yet robust.

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Description

Features

Application

Q&A

Product Parameters

Part Number 61903-2RZ
Brand TFL
Interchangeable SKF
System of Measurement Metric
For Load Direction Radial
Construction Single Row
Bearing Type Ball
Seal Type Sealed
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 0.017 kg

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

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Features

How Does 61903-2RZ Bearing Reduce Friction?

61903-2RZ Bearing features a sealed design with grease lubrication, ensuring smooth operation and reduced friction.
Its chrome steel rings and balls provide excellent durability, even under radial loads up to 1039 lbf.
The stainless steel cage maintains ball alignment, minimising wear and extending the bearing’s lifespan.
With a maximum speed of 26,000 rpm, it delivers reliable performance in various applications.

Application

Key Fields for 61903-2RZ Bearing
61903-2RZ Bearing is commonly used in small electric motors, where its sealed design helps keep out dust and moisture. The compact size makes it ideal for space-constrained applications like power tools or small appliances.

How Does 61903-2RZ Bearing Support High-Speed Operations?
With a maximum speed of 26,000 rpm, 61903-2RZ Bearing works well in high-speed devices such as dental drills or precision spindles. The grease lubrication ensures smooth rotation even during prolonged use.

Built for Heavy-Duty Use: 61903-2RZ Bearing
In conveyor systems, 61903-2RZ Bearing handles radial loads efficiently due to its chrome steel construction. The stainless steel cage adds durability, making it suitable for industrial environments.

Medical vs Industrial: Where 61903-2RZ Bearing Excels
For medical devices like lab centrifuges, 61903-2RZ Bearing offers reliable performance with minimal maintenance. In industrial settings, it’s often found in pumps and small gearboxes where consistent operation is key.

Perfect Fit for Automation: 61903-2RZ Bearing
61903-2RZ Bearing is a popular choice in robotic arms and automated assembly lines due to its precision and sealed protection. The metric sizing ensures compatibility with various European and Asian machinery standards.