Attributes

Brand	-
Category	Root / Industrial Small Parts
Origin	-
Material	Chrome Steel SAE 52100
Seal Type	Double Shield (ZZ) or Rubber Seal (2RS)
Precision Grade	ABEC-5 (ISO P0)
Cage Material	Steel Pressed Cage
Lubrication	Pre-lubricated with Standard Grease
Inner Diameter Options	3, 4, 5, 6, 8, 10, 12 mm
Outer Diameter Options	13, 16, 19, 20 mm
Width Options	4, 5, 6 mm
Operating Temperature	-20°C to +120°C
Package Quantity	10 Pieces per Pack

5 reviews

Anonymous

Apr 11, 2026

Rating: 5/5

Great quality for the price

Used these for a 3D printer upgrade. They run quietly and seem very durable. Shipping was fast too.

Anonymous

Mar 27, 2026

Rating: 4/5

Good bearings, slight noise initially

Overall good product. There was a slight grinding noise at first but it went away after a few minutes of run-in.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for my drone build

These bearings fit perfectly in my custom drone motor mounts. Smooth operation and no noticeable wobble at high speeds.

Anonymous

Mar 09, 2026

Rating: 5/5

Reliable industrial grade

Bought these for a small conveyor belt motor. They handle the load well and seem to be genuine chrome steel.

Anonymous

Jan 22, 2026

Rating: 5/5

Fast shipping and exact specs

Measured the dimensions with calipers and they are spot on. Great for RC car wheel hubs.

5 FAQ

Q: Can I mix different inner diameters in one order?

A: Please select the specific size variant you need. Different sizes are listed as separate options.

Q: Do you sell bulk quantities for manufacturing?

A: Yes, please contact us directly for bulk pricing on orders over 100 packs.

Q: Are these suitable for high RPM applications?

A: Yes, these bearings are rated for high-speed rotation typical in small motors and drones.

Q: Is there a warranty if a bearing fails prematurely?

A: We offer a 30-day return policy for defective items. Please reach out to customer service.

Q: What type of grease is used for lubrication?

A: We use a standard lithium-based grease suitable for general industrial and hobby use.

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