Payment Terms | L/C,T/T |
Supply Ability | 500000pcs per month |
Delivery Time | 2-4 weeks |
Packaging Details | plastic tub/middle box,carton,pallet |
Model Numbers: | 678 ZZ,678-ZZ,678-2Z |
Bearing Seals | Double Shielded ZZ - Shields on Two Sides,2RS or Open available |
Interchange | FAG 678-2ZR, NTN W678 ZZA,B678 ZZ |
Clearance | Standard |
Brand Name | CNBTZC or OEM |
Model Number | 678 ZZ |
Certification | IATF16949:2016 |
Place of Origin | China |
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Product Specification
Payment Terms | L/C,T/T | Supply Ability | 500000pcs per month |
Delivery Time | 2-4 weeks | Packaging Details | plastic tub/middle box,carton,pallet |
Model Numbers: | 678 ZZ,678-ZZ,678-2Z | Bearing Seals | Double Shielded ZZ - Shields on Two Sides,2RS or Open available |
Interchange | FAG 678-2ZR, NTN W678 ZZA,B678 ZZ | Clearance | Standard |
Brand Name | CNBTZC or OEM | Model Number | 678 ZZ |
Certification | IATF16949:2016 | Place of Origin | China |
High Light | high speed deep groove ball bearings ,deep groove ball bearings 678 |
617/8 678 ZZ Minature Deep Groove Ball Bearings 8mm X 12mm X 3.5mm Thin Section Robot Bearings
The 678 ZZ 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 Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Grease | Oil | |||||
d | D | B | B1 | r(min) | Cr | Cor | Non-contact | Wt ≈ | ||||
617/3 | ZZ | 3 | 6 | 2 | 2.5 | 0.1 | 242 | 94 | 60000 | 71000 | 0.00020 | |
617/4 | ZZ | 4 | 7 | 2 | 2.5 | 0.1 | 222 | 88 | 54000 | 63000 | 0.00028 | |
617/5 | ZZ | 5 | 8 | 2 | 2.5 | 0.1 | 217 | 91 | 49000 | 57000 | 0.00032 | |
617/6 | ZZ | 6 | 10 | 2.5 | 3 | 0.1 | 465 | 196 | 43000 | 51000 | 0.00065 | |
617/7 | ZZ | 7 | 11 | 2.5 | 3 | 0.1 | 555 | 269 | 40000 | 47000 | 0.00067 | |
617/8 | ZZ | 8 | 12 | 2.5 | 3.5 | 0.1 | 515 | 252 | 38000 | 45000 | 0.00075 | |
617/9 | ZZ | 9 | 14 | 3 | 4.5 | 0.1 | 920 | 465 | 36000 | 42000 | 0.00140 |
678 ZZ Ball Bearings 8X12X3.5mm Specifications & Dimensions
Universal | 678 ZZ |
Type | Deep Groove Ball |
Inner/Outer Ring/ Ball Material | Chrome Steel |
Cage Material | Steel/Nylon |
CageType | Punching |
Precision | P0,P6 |
Inner Dimension d(Ø)(mm) | 8 |
Outer Dimension D(Ø)(mm) | 12 |
Width B (or T)(mm) | 3.5 |
Lubrication | Grease |
Load Direction | Radial |
Specifications/Environment | Standard |
Number of Raceway Ring Rows | Single Track |
Size Standards | Metric Series |
The 678 ZZ miniature deep groove ball bearing is widely used across various specialized fields due to its compact size and high precision. Application areas include:
1. Aerospace Engine Auxiliary Systems
In auxiliary systems such as fuel pumps and cooling fans, which require small rotating components, the compact size and high-speed performance of the 678 ZZ bearing are crucial.
2. Spacecraft Precision Mechanisms
For mechanisms like camera gimbals and solar panel steering systems, this bearing provides the necessary micro-scale support for high-sensitivity operations.
3. Drone Motors
The 678 ZZ bearing supports lightweight, low-noise operation in small drones, contributing to their efficient and quiet performance.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2013
Total Annual:
30000000-+
Employee Number:
200~+
Ecer Certification:
Verified Supplier
Beining Intelligent Technology Precision Bearings for High-Performance Industries At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in: CNC Machine Tool Spindles Robotics Motors With a focus on quality, automation, and... Beining Intelligent Technology Precision Bearings for High-Performance Industries At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in: CNC Machine Tool Spindles Robotics Motors With a focus on quality, automation, and...
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