The NACHI 6203 NR C3 (17x40x12 mm) is a precision-engineered deep groove ball bearing with a groove-equipped outer ring and C3 clearance—perfect for demanding industrial applications requiring thermal stability and secure fixation. Pre-lubricated and ready to mount, it supports reliable performance in motors, pumps, gearboxes, and automation equipment. Available from simmering.pl with 📍 Lublin stock and 🚚 24h shipping.
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The NACHI 6203 NR C3 is a high-performance deep groove ball bearing, featuring a grooved outer ring (NR) for locking devices and a C3 radial clearance ideal for high-temperature and high-speed operations. Its key specifications:
Dimensions: 17 mm (ID) x 40 mm (OD) x 12 mm (width)
NR groove: Enables secure locking with retaining rings, enhancing axial stability
C3 clearance: Allows for thermal expansion under heavy load and elevated temperatures
Premium steel construction: Offers superior durability and resistance to wear
Pre-lubricated and ready to mount: Minimizes installation time
This bearing delivers smooth, low-friction rotation under radial and axial loads. Perfect for electric motors, pumps, gearboxes, conveyors, and machine tools across manufacturing, automotive, and heavy industries.
1. What is the purpose of the “NR” designation?
“NR” indicates a machined groove in the outer ring for snap ring or retainer mounting, improving axial positioning and security.
2. What does “C3” radial clearance mean?
C3 denotes greater internal clearance, suitable for applications with thermal expansion, higher speeds, or heavier loads.
3. Is this bearing ready for installation?
Yes. The bearing comes factory-lubricated with grease and is ready for immediate use.
4. What are its typical applications?
Ideal for electric motors, industrial pumps, gearboxes, conveyors, and automation systems.
5. Where is it shipped from and how fast?
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing
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Data sheet