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/Flanged Precision Ball Bearings Metal Shields MF85-ZZ 5x8x2.5mm

Flanged Precision Ball Bearings Metal Shields MF85-ZZ 5x8x2.5mm

MF85ZZ bearing is a flanged ball bearing made of chrome steel in which the bearing is metal shield from both sides It has an 5mm inner diameter, a 8mm outer diameter, a 2.5mm thickness, and an 9.2mm flange.
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Flanged Precision Ball Bearings Metal Shields MF85-ZZ 5x8x2.5mm


Flanged Metal Shielded Deep Groove Ball Bearings: Manufactured to the same principal sizes as standard bearings but fitted with metal shields, these bearings have an additional flange to allow fitting into housings flush against the shoulder of the flange. They are often used on steel tracks as guides and supports. The shields serve to offer protection to prevent ingress of debris and dust whilst retaining the grease within the bearing.


Benefits: Cost effective replacement bearing, Flanged design, Metal shielded


Flanged Radial Bearings like these are also used within machines like 3D Printers that have timing belts, and allow the belt to move and rotate while the edge holds the belt in place and keeps it from sliding off. Typically, two of these bearings will be used together to keep belts centred, but double-flanged bearings can also be used instead.



Bearing Type Ball
For Load Direction Radial
Construction Single Row
Seal Type Shielded
Part Number MF85ZZ
For Shaft Diameter 5mm
Bore Dia (d) 5mm
Bore Dia Tolerance -0.008mm to 0
For Housing ID 8mm
Outer Dia (D) 8mm
Outer Dia Tolerance -0.008mm to 0
Width (B) 2.5mm
Width Tolerance -0.12mm to 0
Flange Outer Dia. 9.2mm
Flange Thickness 0.6mm
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) 185
Static Load Rating (Cor) (Newtons) 72
Max Speed (Grease) (X1000 RPM) 53
Max Speed (Oil) (X1000 RPM) 43
Lubrication Required
Shaft Mount Type Press Fit
Temperature Range -30° to 110 °C
ABEC Rating ABEC-3
Radial Clearance Trade No. C0
Radial Clearance 0.002mm to 0.013mm
RoHS Compliant
Ball Qty 9
Ball Dia 0.8000mm
Weight (grams) 0.42

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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