5x16x5mm 625ZZ Miniature Quality Deep Groove Ball Bearing
| Item No : | 625-ZZ / R-1650HH |
| Size (d*D*B) : | 5x16x5mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.005KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
The 625-ZZ / R-1650HH (5x16x5mm) is a widely used high-precision miniature deep groove ball bearing featuring dual metal dust shields (ZZ / HH). Manufactured with premium GCr15 chrome steel raceways, precision-ground steel balls, and a rigid pressed steel retainer, this ultra-compact bearing offers exceptionally low rotational friction, smooth high-RPM capabilities, and high radial load durability in tight assembly spaces. We provide our high-value proprietary RMO brand 625-ZZ miniature bearings alongside flexible sourcing options for major international brands to meet your exact OEM requirements.
⚙️Product Features:
- Dual Metal Shielding (ZZ / HH): Factory-installed pressed steel dust covers retain pre-packed grease while effectively blocking dust and fine mechanical particles.
- Compact 5x16x5mm Dimensions: Standardized metric micro size designed specifically for space-restricted precision drive shafts and miniature rotating mechanisms.
- GCr15 Chrome Steel Rings & Balls: Vacuum-degassed GCr15 steel construction guarantees outstanding fatigue resistance, surface hardness, and long operational life.
- Low Friction and Low Vibration: Micro-finished raceway geometry minimizes torque resistance and vibration for smooth, quiet high-speed operation.
- Dual-Brand Supply Solutions: Available in cost-effective RMO factory stock as well as original options from top-tier international bearing manufacturers.
⚙️Product Application:
- 3D Printers and CNC Motion Systems: Extruder drive gears, V-slot pulleys, and NEMA 17 stepper motor shafts requiring smooth linear stroke.
- Robotics and Servo Drive Units: Micro servo motors, robotic joint actuators, and automated precision positioning modules.
- Office Equipment and Hardware: Laser printers, photocopier drive rollers, scanner guide rails, and small motorized pulleys.
- RC Models and Small Power Tools: Remote control vehicles, drone motors, model aircraft, and miniature handheld rotary tools.
⚙️Precautions:
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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⚙️Obtain Certificate:
About Rimao
Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!
⚙️Technical Parameters:
| Model / Industry No. | 625-ZZ / 625ZZ / R-1650HH miniature bearing |
| Metric Dimensions | 5 x 16 x 5 mm (Inner d x Outer D x Total Width/Height H) |
| Bearing Type | Miniature Deep Groove Ball Bearing |
| Precision Rating | ISO P6 / P5 (ABEC-3 / ABEC-5) |
| Ring & Ball Material | Vacuum-Degassed GCr15 Bearing Steel |
| Cage Material | Pressed Ribbon Steel Cage |
| Shield Type | Dual Metal Shields on Both Sides (ZZ / HH) |
| Lubrication | Pre-lubricated with High-Speed Grease |
| Target Applications | 3D Printers, NEMA 17 Motors, Robotics, RC Models, Printers |
| Brand | RMO (Own Brand) / Neutral / OEM Custom / Other Global Brands |
| Package | Individual plastic bag, plastic tube or original RMO brand box |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Shipping | Express (DHL/FedEx/UPS), Air Freight, Sea Freight |
| Payment | 100% TT, or 30% TT In Advance, 70% TT After Finished Production |
| Model No. | d | D | H | m |
| 623-2Z | 3 mm | 10 mm | 4 mm | 1 g |
| 628/4-2Z | 4 mm | 9 mm | 3.5 mm | 1 g |
| 624-2Z | 4 mm | 13 mm | 5 mm | 4 g |
| 628/5-2Z | 5 mm | 11 mm | 4 mm | 1.4 g |
| 625-2Z | 5 mm | 16 mm | 5 mm | 5 g |
| E2.625-2Z | 5 mm | 16 mm | 5 mm | 5 g |
| 628/6-2Z | 6 mm | 13 mm | 5 mm | 2.6 g |
| E2.626-2Z | 6 mm | 19 mm | 6 mm | 8.4 g |
| 626-2Z | 6 mm | 19 mm | 6 mm | 8 g |
| 628/7-2Z | 7 mm | 14 mm | 5 mm | 3.1 g |
| E2.627-2Z | 7 mm | 22 mm | 7 mm | 13 g |
| 627-2Z | 7 mm | 22 mm | 7 mm | 12 g |
| 628/8-2Z | 8 mm | 16 mm | 5 mm | 3.6 g |
| E2.628-2Z | 8 mm | 24 mm | 8 mm | 17 g |
| 628-2Z | 8 mm | 24 mm | 8 mm | 18 g |
| 628/9-2Z | 9 mm | 17 mm | 5 mm | 4.3 g |
| E2.629-2Z | 9 mm | 26 mm | 8 mm | 20 g |
| 629-2Z | 9 mm | 26 mm | 8 mm | 21 g |
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