KINEX 6203 ZZ Precision Ball Bearing - 17 x 40 x 12 mm

KINEX 6203 ZZ Precision Deep‑Groove Ball Bearing - 17 x 40 x 12 mm, Double‑Shielded

The KINEX 6203 ZZ Precision Deep‑Groove Ball Bearing (17 mm bore x 40 mm OD x 12 mm width) is engineered for superior durability, performance, and efficiency. Featuring double metal shields (ZZ), pre‑lubrication, and Made‑in‑Slovakia quality, it’s ideal for demanding industrial and automotive applications.

Key Features & Benefits:

• Dimensions: 17 x 40 x 12 mm bore/OD/width — compatible with 6203, 203, or 6203Z series

• Double‑Shielded (ZZ): Prevents dust and contamination, supports smoother long‑term operation

• Chrome‑Steel (GCr15/SAE‑52100) construction - high hardness, reliable radial & axial load capacity

• Pre‑Lubricated with quality grease - ready for immediate installation, lowers maintenance costs

• High‑Speed Capability:
   • Grease rated for up to 24,000 RPM (plastic grease ~17,000 RPM)

• Load Ratings: ~2,200 lbf dynamic, ~1,100 lbf static (≈9.8 kN/4.8 kN)

• Precision & Tolerance: Often meets ABEC‑3 / P6 standards; honed raceways for low‑noise/high‑precision

Applications (Use Cases):

• Electric motors, pumps, compressors

• Conveyor systems, printing & textile machines, turbines

• Automotive transmissions, engines, power tools

• Home appliances (washing machines, fans), robotics

• High‑speed shafts, spindles, rolling mills

This bearing is fully interchangeable with standard codes like 6203Z, 6203‑2Z, 203KDD, JD8504, and more

SEO Keywords embedded:

6203 ZZ, deep‑groove ball bearing, 17x40x12 mm, double‑shielded bearing, KINEX bearing, 6203Z precision, pre‑lubricated bearing, ABEC‑3, high‑speed radial bearing

FAQ

Q1: What does “ZZ” mean?
A: “ZZ” indicates double metal shields, one on each side, offering dust protection and enabling higher operational speeds.

Q2: Is this KINEX 6203 ZZ pre‑lubricated?
A: Yes, it's grease‑packed at the factory and ready to use—no extra lubrication required.

Q3: What speed can this bearing handle?
A: Up to approximately 24,000 RPM with standard grease, and ~17,000 RPM with plastic-based grease

Q4: What are the load ratings?
A: Supports ~2,200 lbf (≈9.8 kN) dynamic and ~1,100 lbf (≈4.8 kN) static loads .

Q5: Can this bearing replace SKF/NTN/Timken 6203 ZZ?
A: Yes—it’s fully interchangeable with major OEM codes like 6203Z, 203KDD, JD8504, and Timken 6203‑ZZ .

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Lublin, ul. Smoluchowskiego 1, building 4

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AI‑Powered Review

Our proprietary AI‑evaluation rated this bearing 4.9/5 for precision, speed, and durability—outperforming standard 6203 ZZ bearings.