617/8 678 Minature Deep Groove Ball Bearing 8X12X2.5mm Thin Section Robot Bearing

Brand Name:CNBTZC or OEM
Certification:IATF16949:2016
Model Number:678
Minimum Order Quantity:50000
Delivery Time:2-4 weeks
Payment Terms:L/C,T/T
Contact Now

Add to Cart

Verified Supplier
Address: No.502,Xinxing Third Road,Cixi Intelligent Home Appliance High Tech Industrial Development Zone, Zhejiang,China
Supplier`s last login times: within 21 hours
Product Details Company Profile
Product Details

617/8 678 Minature Deep Groove Ball Bearings 8mm X 12mm X 2.5mm Thin Section Robot Bearings

8mm Bore 678 617/8 Minature Deep Groove Ball Bearing 8 X12X2.5mm Single Row Open Type Rolling Radial Ball Bearing Thin Section Robot Bearing High Performance Bearing

The 678 miniature deep groove ball bearing, with dimensions of 7mm inner diameter × 11mm outer diameter × 3mm width, is renowned for its compact size, high-speed capability, and low noise characteristics.



Bearing Number
Boundary Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)Reference(kg)
Weight
Inner DiameterOuter DiameterWidthChamferDynamicStaticGreaseOil
dDBB1r(min)CrCorNon-contactWt ≈
617/3ZZ3622.50.12429460000710000.00020
617/4ZZ4722.50.12228854000630000.00028
617/5ZZ5822.50.12179149000570000.00032
617/6ZZ6102.530.146519643000510000.00065
617/7ZZ7112.530.155526940000470000.00067
617/8ZZ8122.53.50.151525238000450000.00075
617/9ZZ91434.50.192046536000420000.00140

678 Ball Bearings 8X12X2.5mm Specifications & Dimensions

Universal678
TypeDeep Groove Ball
Inner/Outer Ring/ Ball MaterialChrome Steel
Cage MaterialSteel/Nylon
CageTypePunching
PrecisionP0,P6
Inner Dimension d(Ø)(mm)8
Outer Dimension D(Ø)(mm)12
Width B (or T)(mm)2.5
LubricationGrease or oil
Load DirectionRadial
Specifications/EnvironmentStandard
Number of Raceway Ring RowsSingle Track
Size StandardsMetric Series

The 678 miniature deep groove ball bearing is widely used across various specialized fields due to its compact size and high precision. Application areas include:

1. Precision Machinery and Automation Equipment

Suitable for transmission systems and rotating mechanisms, ensuring precise movement and long operational life in equipment.

2. Micro Motors and Stepper Motors

Acts as a core component supporting the rotor or shaft, ensuring stable motor operation. Commonly found in electric tools, household appliances (such as air conditioner motors and washing machine motors), and other devices requiring consistent performance.

3. Electronic Products and Instrumentation

Utilized in hard disk drives, sensors, optical instruments, and other devices that require low noise and high-precision control, contributing to their smooth and accurate functioning.

4. Automotive Industry

Potentially used in small transmission components or auxiliary systems such as seat adjustment mechanisms and steering systems. Particularly valuable in scenarios where compact design is essential.

5. Industrial Support and Aftermarket

Serves as a standard part for maintenance and replacement in mechanical transmission products, meeting the needs of aftermarket support for imported bearings.


China 617/8 678 Minature Deep Groove Ball Bearing 8X12X2.5mm Thin Section Robot Bearing supplier

617/8 678 Minature Deep Groove Ball Bearing 8X12X2.5mm Thin Section Robot Bearing

Inquiry Cart 0