
Model Numbers: BR104, MR104, MR104ZZ
Brands Carried: MISUMI, NSK, EZO, NSK Micro Precision
Bearing Sizing: ID 4mm X OD 10mm X W 3mm, 4 mm Ball Bearing
Bearing Seals: Open, Double Shielded
For more MR104 ball bearings and seal options — we have hundreds visit MISUMI.
Select Part Numbers to Buy MR104 Ball Bearings
Bearing Seals | MISUMI | NSK | EZO (SPB-USA) | NSK MICRO PRECISION |
---|---|---|---|---|
Open Type | BR104 | – | MR104 | – |
Single Shielded | – | – | – | – |
Double Shielded | – | MR104ZZ | MR104ZZ | MR104ZZ |
Rubber Sealed | – | – | – | – |
Please select between the four options above:

BR104 Ball Bearing
MR104 Ball Bearing


MR104ZZ Ball Bearing

Miniature Ball Bearings MR104 – 4X10X3mm Description
The MR104 is a 4 mm Ball Bearing that can be used in many rotary and factory automation applications. The MR104 Miniature Ball Bearings is an open style bearing. The MR104ZZ ball bearing has a single row raceway and it is shielded on each side. The MR104 4 mm Ball Bearing Inner Dimension 4mm X Outer Dimension 10mm X Width 3mm is an open style ball bearing designed for high rotational speeds and high dynamic loads.
MR104 Ball Bearings 4X10X3mm Specifications & Dimensions
Universal | MR104 |
---|---|
Type | Ball |
Inner/Outer Ring Material | Steel |
Precision | Grade 0 |
Inner Dimension d(Ø) | 4 |
Outer Dimension D(Ø) | 10 |
Width B (or T)(mm) | 3 |
Retainer Type | Punching |
Load Direction | Radial |
Specifications/Environment | Standard |
Number of Raceway Ring Rows | Single Track |
Size Standards | Metric Series |

Miniature Ball Bearings MR104 – Technical Specifications/Dimensions
Double Shielded Ball Bearings
Rubber Sealed Ball Bearings
Other Ball Bearing Series