Product Specifications
| Parameter |
Details |
| Model NO. |
MR52 |
| Specification |
2*5*2mm |
| Feature |
Long Life, High Speed, Low Noise |
| Trademark |
NSK |
| Origin |
Japan |
| HS Code |
8482300000 |
Application Industries
| Industry |
Typical Equipment |
| 3D Printing |
Extruder components, guide rails, precision motion systems |
| RC Modeling |
Micro motors, gearboxes, steering mechanisms, drone components |
| Automotive |
Small fans, auxiliary motors, precision instruments |
| Industrial Machinery |
Small gearboxes, miniature pumps, precision conveyors |
Eliminate 3D Printer Jams and RC Model Vibrations with MR52 Micro Bearings
3D printing enthusiasts and RC hobbyists know the frustration: micro bearings that fail prematurely cause layer shifts, motor overheating, and shaky control. Generic bearings often lack the precision for 0.1mm print tolerances or the durability for high-RPM RC motors. Sourcing genuine small-diameter bearings with reliable performance can mean endless supplier vetting and minimum order quantities that don’t fit project needs.
Genuine NSK MR52 Bearings: Precision Engineered for Small-Scale Power
Our High Precision MR52 Micro Bearings deliver the solution. With dimensions 2x5x2mm, these low noise bearings are designed to meet the exacting demands of 3D printer extruders and RC model drivetrains. As a professional bearing supplier with decades of export experience, we ensure every NSK MR52 bearing meets original manufacturer specifications—no compromises on material quality or dimensional accuracy.
Where Precision Meets Performance
These micro bearings excel in applications requiring stable rotation at high speeds with minimal vibration. In 3D printers, they maintain consistent filament feed by reducing axial play to less than 3μm, directly improving print layer adhesion. For RC models, their low noise operation (Z2 noise grade equivalent) ensures smooth throttle response and extends motor life by 30% compared to standard micro bearings. Whether under continuous 3D printing loads or the rapid acceleration of RC vehicles, these bearings deliver reliable performance.
Technical Details That Make the Difference
The MR52’s 2mm bore diameter and 5mm outer diameter balance compact size with load capacity, supporting radial loads up to 600N—critical for maintaining precision in miniature mechanisms. Its 2mm width provides optimal stability without adding unnecessary bulk, ideal for tight 3D printer assemblies. Constructed with high-grade chrome steel, the bearing resists corrosion from 3D printing filaments and RC model lubricants, while its precision manufacturing (equivalent to P0-P4 grade) ensures minimal runout, a key factor in reducing 3D printer layer defects and RC model vibration.
Why Genuine NSK Beats Cheap Alternatives
Counterfeit micro bearings may cost less upfront, but they often use inferior steel alloys that wear 50% faster, leading to 3D printer nozzle clogs or RC motor burnout. A single bearing failure in a 3D printer can ruin hours of print time and materials worth $100+. Genuine NSK MR52 bearings, backed by ISO 9001:2015 quality standards, eliminate these risks. Our full-process quality control includes dimensional inspection and noise testing, ensuring each bearing meets ABMA and DIN international standards for reliability.
Your Trusted Source for Micro Bearings
With over 18 years in the bearing industry, we serve customers across Europe, North America, and Southeast Asia with a track record of 98% on-time delivery. As an authorized NSK supplier, we provide full product traceability—each MR52 bearing comes with original packaging and batch certification. Our technical team offers free guidance on bearing selection for specific 3D printer models or RC applications, and we support OEM/ODM customization for unique project requirements. With a 12-month warranty and replacement service for defective products, we stand behind every bearing we supply.
Packaging & Shipping
- Original NSK packaging with anti-counterfeit labels
- Sample orders shipped within 3-5 working days
- Bulk orders delivered in 5-15 working days
- Multiple shipping options: DHL, FedEx, UPS, or standard air freight
- 1 piece MOQ for standard bearings, ideal for prototyping and repairs
Get Your MR52 Bearings Today
Don’t let subpar bearings derail your 3D printing projects or RC builds. Whether you need a single replacement or bulk quantities, we ensure fast delivery and genuine quality. Send us your application details—3D printer model, RC motor specifications, or required quantity—and our team will confirm compatibility and provide a quote within 24 hours.
Frequently Asked Questions
Q: Are these genuine NSK bearings?
A: Yes, we are an authorized NSK supplier. All MR52 bearings come with original packaging and batch certification for full traceability.
Q: How do I confirm if the MR52 fits my 3D printer?
A: Provide your 3D printer model or extruder specifications, and our technical team will verify compatibility based on shaft diameter and load requirements.
Q: What is the warranty period?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects with free replacement or refund.
Q: What is the minimum order quantity?
A: Standard bearings like the MR52 have a 1 piece MOQ, supporting small repairs and prototyping needs.
Q: How long does shipping take to Europe?
A: Sample orders typically arrive in 3-5 working days via DHL; bulk orders take 5-10 working days depending on quantity.
Q: How can I verify the bearing’s authenticity?
A: Check the NSK laser marking on the bearing outer ring and scan the anti-counterfeit label on the packaging. We also provide a certificate of authenticity upon request.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
