625ZZ Miniature Deep Groove Ball Bearings 5x16x5mm – 10pcs
625ZZ Miniature Deep Groove Ball Bearings – 5x16x5mm (10-Pack)
Upgrade your builds with these precision-engineered 625ZZ miniature deep groove ball bearings. Sized at 5mm bore × 16mm outer diameter × 5mm width, this 10-piece set is an indispensable component for hobbyists, engineers, and DIY enthusiasts alike. The double-shielded (ZZ) design keeps internal rolling elements protected from dust and debris, ensuring consistent, low-friction rotation across a wide range of applications.
Key Features
- Precision 625ZZ Specification: 5mm inner diameter, 16mm outer diameter, 5mm width — a universally popular miniature bearing size.
- High-Grade Carbon Bearing Steel: Crafted from durable carbon bearing steel for excellent load-carrying capacity and long service life.
- Double Metal Shields (ZZ): Enclosed shields on both sides guard rolling elements and grease from contaminants, reducing maintenance needs.
- Deep Groove Design: Handles both radial and moderate axial loads, making it versatile across many mechanical setups.
- Smooth, Low-Noise Operation: Precision-ground races and quality steel balls deliver quiet, consistent rotation.
- 10-Piece Set: Generous quantity perfect for stocking spares or completing multi-bearing projects.
Common Applications
- Skateboards & scooters
- 3D printers & CNC machines
- Robotics & RC vehicles
- Pulley wheels & conveyor systems
- Power tools & small motors
- Rolling mills & industrial equipment
Specifications
| Bearing Number | 625ZZ |
| Inner Diameter (Bore) | 5 mm |
| Outer Diameter | 16 mm |
| Width | 5 mm |
| Material | Carbon Bearing Steel |
| Shield Type | Double Metal Shield (ZZ) |
| Bearing Type | Deep Groove Ball Bearing |
| Quantity | 10 pieces |
For guidance on safe handling of mechanical components, refer to the OSHA Machine Guarding resources.
Frequently Asked Questions
Q: What does "625ZZ" mean for these miniature ball bearings?
A: The "625" refers to the bearing's standard dimensions — 5mm inner diameter, 16mm outer diameter, and 5mm width. "ZZ" indicates the bearing has double metal shields on both sides, which protect the internal rolling elements and grease from dust and contaminants, keeping the bearing running smoothly with minimal maintenance.
Q: What are these 5x16x5mm bearings compatible with?
A: The 625ZZ deep groove ball bearings are compatible with a wide range of equipment including skateboards, scooters, 3D printers, CNC machines, RC vehicles, robotics, pulley systems, power tools, and various small motors. Their standard sizing makes them a popular replacement part across many industries and hobbies.
Q: How many bearings come in one order?
A: Each order includes 10 pieces of 625ZZ miniature deep groove ball bearings, giving you plenty for multi-bearing projects or a useful stock of spares.
Q: What material are these miniature bearings made from?
A: These bearings are manufactured from high-grade carbon bearing steel, which provides excellent hardness, durability, and resistance to wear under both radial and moderate axial loads — ideal for demanding mechanical applications.