Minature 678 Ball Bearings 8mm X 12mm X 2.5mm

678 Ball Bearings

Model Numbers: B678ZZ

Brands Carried: MISUMI

Bearing Sizing: ID 8mm X OD 12mm X W 2.5mm, 8 mm Ball Bearing

Bearing Seals: Double Shielded

For more 678 ball bearings and seal options — we have hundreds visit MISUMI.



Select Part Numbers to Buy 678 Ball Bearings


Bearing Seals MISUMI
Open Type
Single Shielded
Double Shielded B678ZZ
Rubber Sealed


Please select between the four options above:

Open Type:
Ball Bearings Open
Single Shielded:
Ball Bearings Single Shielded
Double Shielded:
Ball Bearings Double Shielded
B678ZZ Ball Bearing
Rubber Sealed:
Ball Bearings Rubber Sealed


Miniature Ball Bearings 678 – 8X12X2.5mm Description

The 678 is a 8 mm Ball Bearing that can be used in many rotary and factory automation applications. The 678 Miniature Ball Bearings is an open style bearing. The 678 8 mm Ball Bearing Inner Dimension 8mm X Outer Dimension 12mm X Width 2.5mm is an open style ball bearing designed for high rotational speeds and high dynamic loads.


678 Ball Bearings 8X12X2.5mm Specifications & Dimensions


Universal 678
Type Ball
Inner/Outer Ring Material Steel
Precision Grade 0
Inner Dimension d(Ø) 8
Outer Dimension D(Ø) 12
Width B (or T)(mm) 2.5
Retainer Type Punching
Load Direction Radial
Specifications/Environment Standard
Number of Raceway Ring Rows Single Track
Size Standards Metric Series
678 Ball Bearings Dimensions


Miniature Ball Bearings 678 – Technical Specifications/Dimensions


Open Ball Bearings


Single Shielded Ball Bearings



Double Shielded Ball Bearings


MISUMI B678ZZ Double Shielded PDF Link

Rubber Sealed Ball Bearings



Other Ball Bearing Series



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