MR633ZZ Ball Bearing - 3mm ID x 13mm OD x 5mm Width - Chrome Steel
UPC: 00193019298404
Type: Deep Groove Ball Bearing
Style: MR Metric Size
Material: Chrome Steel
Closures: Metal shielded (Both sides)
MR633ZZ Chrome Steel Ball Bearing
✔️ 3x13x5mm - Double Metal Shields - High-Speed Rated
The MR633ZZ is a miniature deep groove ball bearing made from high-strength chrome steel, designed for compact spaces where speed and durability matter. With metal shields on both sides and pre-lubricated grease, it's ready for high-speed performance right out of the box.
✅ Pack size: 1 bearing
✅ Inner diameter: 3mm
✅ Outer diameter: 13mm
✅ Width: 5mm
✅ Type: Deep groove radial - miniature size
✅ Material: Chrome steel
✅ Closures: Double metal shields (ZZ)
✅ Lubrication: Grease-lubed and sealed
✅ Dynamic load rating: 1,300 N
✅ Static load rating: 490 N
✅ Limiting speed (grease): 44,000 RPM
✅ Use: Ideal for small motors, RC equipment, robotics, and instruments
Dimensions Table:
| Inner Diameter | Outer Diameter | Width |
|---|---|---|
| 3mm | 13mm | 5mm |
💡 Why choose miniature shielded ball bearings like the MR633ZZ?
They're made for fast, smooth motion in tight spaces.
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Shields keep dust out for longer bearing life
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Chrome steel adds strength and low friction
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Fits small mechanical assemblies with high RPM needs
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Perfect for drones, medical tools, and hobby projects
Tiny but tough - pick up the MR633ZZ and keep your precision setup spinning flawlessly.