Metric Size Standard Miniature Ball Bearings MR148

The MR148 is a compact miniature ball bearing with an 8mm bore and 14mm outer diameter, measuring just 3.5mm wide. Made from chrome steel, it offers reliable performance for radial loads up to 156 lbf.

With a maximum speed of 38,000 RPM, it spins smoothly and efficiently. The open design allows for easy lubrication, while the stainless steel cage ensures durability.

This bearing is ideal for small machinery or precision instruments where space is limited. Its lightweight design at 1.9g makes it easy to handle and install.

Compliant with RoHS and REACH standards, it operates in temperatures from -30°C to 110°C, suitable for various industrial applications.

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Description

Features

Application

Q&A

Product Parameters

Part Number MR148
Brand TFL
Interchangeable EZO
Bore Dia 8 mm
Bore Dia Tolerance -0.008mm to 0
Outer Dia 14 mm
Outer Dia Tolerance -0.008mm to 0
Width 3.5 mm
Width Tolerance -0.12mm to 0
Ball Qty 10
Ball Dia 1.5880 mm
Radial Clearance 0.002mm to 0.013mm
Seal Type Open
System of Measurement Metric
Bearing Type Ball
For Load Direction Radial
Construction Single Row
Inner Ring Type Standard
Tolerance Class ABEC1
Radial Clearance Trade No MC3
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Stainless Steel
Dynamic Radial Load 156 lbf
Static Radial Load 70 lbf
Temperature Range -30° to 110 °C
Lubrication Required
RoHS Compliant
REACH Compliant
Max Speed 38000 rpm
Weight 1.9 g
Price（$） 1.035

Metric Size Standard Miniature Ball Bearings MR148 dimension drawing

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Features

Performance Features of MR148 Bearing

MR148 Bearing is crafted with chrome steel rings and balls, offering reliable radial load support.
Its dynamic radial load capacity of 156 lbf ensures steady performance in various applications.

The stainless steel cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 38,000 rpm, it delivers smooth operation for high-speed tasks.

MR148 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its compact size (8 mm×14 mm×3.5 mm) makes it ideal for miniature applications.

Application

Common Applications of MR148 Bearing
MR148 Bearing is widely used in small electric motors, such as those found in cooling fans or power tools, thanks to its compact size and reliable radial load capacity. The open design allows for easy lubrication, ensuring smooth operation over time.

In robotics, MR148 Bearing fits perfectly in lightweight joints and actuators, where precision and low friction are key. Its chrome steel construction ensures durability even in repetitive motion scenarios.

For consumer electronics like printers or handheld devices, MR148 Bearing provides quiet and efficient performance. The ABEC1 tolerance makes it suitable for applications where moderate precision is needed without excessive cost.

Medical devices, such as small pumps or lab equipment, benefit from MR148 Bearing’s consistent performance and resistance to wear. The stainless steel cage adds an extra layer of reliability in sterile environments.