Deep Groove 6210ZZ High Precision Ball Bearings Z2 50 X 90 X 20mm

6210ZZ (50x90x20mm) is a single-row bearing that supports radial loads, made with Chromium Steel providing superior quality and durability. It comes pre-lubricated and shielded to keep the lubricant in and contaminants, dirt and debris out.
Product Details

Deep Groove 6210ZZ High Precision Ball Bearings Z2 50 X 90 X 20mm


The Deep Groove 6210ZZ High Precision Ball Bearings Z2 50 X 90 X 20mm is the most widely used bearing type because of simple configuration, easy using, high speed, long life and low noise. Primarily intended for applications where the bearing inner ring rotates.


These deep groove ball bearing are fitted with two steel dust shields to prevent ingress of dirt and foreign matter. If the outer ring rotates there is a danger that grease may be lost from the bearing at high speed. Suitable for low speed, low demand environment. It accommodates redial load while can take axial load to some extent.


This type of bearing is widely applied in low-speed transmission equipment, hardware equipment, industrial machine, meters, mining, earth moving machinery, motorcycle, automobile, power tools, casters, stroller, toys, mechanical equipment and other kinds of field.


light series with compact dimensions and low weight

can carry relatively high radial loads despite low weight

suitable for high radial loads and light axial loads in both directions

offers high running accuracy, quiet running and high speeds

seal: contact lip seal on both sides made of steel (ZZ) for high sealing effect

If you need this bearing in Z design with only one seal and one open side, you can simply remove one of the two seals: to the instructions

good fixed bearing property, but can also be used as a floating bearing, each in both directions



Bearing Type Ball
For Load Direction Radial
Construction Single Row
Seal Type Sealed
Part Number 6210ZZ
For Shaft Diameter 50mm
Bore Dia (d) 50mm
Bore Dia Tolerance -0.008mm to 0
For Housing ID 90mm
Outer Dia (D) 90mm
Outer Dia Tolerance -0.008mm to 0
Width (B) 20mm
Width Tolerance -0.12mm to 0
Ring Material 52100 Chrome steel
Ball Material 52100 Chrome steel
Cage Material 300 Series Stainless Steel
Shield Material 300 Series Stainless Steel
Dynamic Load Rating (Cr) (Newtons) 355100
Static Load Rating (Cor) (Newtons) 23300
Max Speed (Grease) (X1000 RPM) 6
Max Speed (Oil) (X1000 RPM) 29
Lubrication Required
Shaft Mount Type Press Fit
Temperature Range -30° to 110 °C
ABEC Rating ABEC-3
Radial Clearance Trade No. C0
Radial Clearance 0.003mm to 0.018mm
RoHS Compliant
Ball Qty 10
Ball Dia 12.700mm
Weight (grams) 463

1 Applicable only for open, single Z, ZZ, single RU and 2RU types in inner ring rotating conditions. Max. speeds for the contact rubber seal(s) types will be around 50-60 % of above values.
2 Applicable only for open, single Z, ZZ, single RU and 2RU types in inner ring rotating conditions. Max. speeds for the contact rubber seal(s) types will be around 50-60 % of above values.


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