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We're looking at a 6000-6400 series deep groove ball bearing here, basically the workhorse of the industrial world—NSK NTN Koyo Timken equivalent quailty but often a bit more competitive on price. You're getting chrome steel GCr15, hardness held at 59-63HRC, with bore diameters form 10mm up to 320mm depending on what your machine calls for.
So the precision grades run from P0 standerd all teh way to P2 if you need ultra-low runout, and vibration levels come in Z1V1 up to Z3V3 for quieter operation. Most buyers going into electric motors or automotive assemblies usually grab the P6 or P5 grade with C3 radial clearance, especially when speeds push 8,000 to 15,000 RPM on grease. And seals are open, ZZ metal shield, or 2RS rubber—pick what keeps contaminants out of your housing.
Actually, one thing we've seen catch people off guard is and static load ratings vary wildly by size. For a 6205, you're looking at about 10.7kN and 6.6kN static—it's good for moderate radial and axial loads. But what it won't handle well is heavy misalignment or sustained shock loads; that's when you'd step up to a spherical or tapered roller bearing instead.
The cage matrial can be steel, brass, or nylon—nylon gives quieter running at high speeds but can't take temps above 120°C consistently, where brass holds better. Operating temp range is -30°C to +120°C either way, so unless you're baking or freezing these, you're fine.
Anyway, if you're sending an RFQ, just specify the series (say 6202), the seal type (ZZ or 2RS), radial clearance (C3 is typical), and the quantity. We usually stock most common sizes, but lead time is about 15-18 days for special grades like P4 or P2 with brass cages—confirm before committing. Minimum order is typically 50 pieces per size, give or take.
We can supply material certificates and inspection reports for any lot. All bearings are manufactured to ISO, DIN, or ANSI/ABMA standards, so you'll get the same quality as NSK or Timken equivalents.
For standard sizes and clearances, MOQ is around 100 pieces per model. If you need C4, C5, or custom packaging, we can usually do a lower MOQ—just let us know the quantity and we'll confirm.
Yes, we offer P5 and P4 grades. For electric motors, P5 is common, but if you need tighter tolerances for higher speeds, P4 works too. We can also match the vibration level to Z2V2 or Z3V3 if required.
For a standard 6200 series with 2RS seals and brass cage, we can ship within 7-15 days if in stock. If not, production takes around 20-25 days depending on the volume.
Keep them in a dry, clean environment with stable temperature, ideally between 10°C and 30°C. Leave the original packaging intact to protect from dust and moisture—no need to remove the anti-rust coating.
