A
Anonymous
Apr 16, 2026
Rating: 5/5
Fast shipping
Arrived quickly and well packaged. No rust or damage on any of the units.
Description
Tmall Trendy Premium Products Quality Guaranteed
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | Chrome Steel GCr15 |
| Seal Type | ZZ (Metal) or 2RS (Rubber) |
| Precision Rating | ABEC-1 / ABEC-3 / ABEC-5 |
| Cage Material | Steel or Nylon Reinforced |
| Lubrication | Pre-lubricated with Grease |
| Bearing Series | 618 Ultra Thin Section |
| Inner Diameter | 2mm to 9mm (Model Dependent) |
| Outer Diameter | 5mm to 19mm (Model Dependent) |
| Width | 2.5mm to 5mm (Model Dependent) |
| Package Quantity | 10 Pieces per Pack |
5 reviews
A
Anonymous
Apr 09, 2026
Rating: 5/5
Exact fit for 618/5
Replaced old bearings in my motor. Spin is very free and seems durable.
A
Anonymous
Apr 08, 2026
Rating: 5/5
Great for robotics
Using these in a small robotic arm. Very reliable under light load conditions.
A
Anonymous
Mar 16, 2026
Rating: 4/5
Good quality, slight noise
Works well for the price. One bearing was slightly noisy but the rest are great for hobby use.
A
Anonymous
Feb 15, 2026
Rating: 5/5
Perfect for my drone build
Smooth rotation and exact dimensions. Fit perfectly into the motor housing without any force.
5 FAQ
Q: Do they come pre-lubricated?
A: Yes, all bearings are pre-lubricated with standard grease.
Q: Are these compatible with standard 618 series housings?
A: Yes, these follow standard 618 dimension specifications.
Q: Is the seal rubber or metal?
A: We offer both 2RS (rubber) and ZZ (metal) options. Please check selection.
Q: What is the maximum RPM for the 618/9?
A: Depending on lubrication and load, typically up to 30,000 RPM.
Q: Can I mix sizes in one order?
A: Please select specific sizes from the dropdown menu individually.
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