693ZZ Bearing 3*8*4 Mm ( 10 Pcs ) ABEC-7 Miniature Engine 693 ZZ Ball Bearing 619/3ZZ R-830ZZ EMQ Motors Fans 693Z 693 Bearings
693ZZ Bearing 3*8*4 Mm ( 10 Pcs ) ABEC-7 Miniature Engine 693 ZZ Ball Bearing 619/3ZZ R-830ZZ EMQ Motors Fans 693Z 693 Bearings
SPECIFICATIONS
Brand Name: NoEnName_Null
Origin: Mainland China
Structure: Deep Groove Ball
Coatings: Chrome Steel
Material: Steel
Torque Capacity: 3x8x4 mm fmm engine bearing 202
Surface Roughness: Ra 0.05
Model Number: 693ZZ ABEC-7 High Speed Motors Fans
Certification: RoHS
![](https://ae01.alicdn.com/kf/HTB1Lx_YdeSSBuNjy0Fl762BpVXaq.png)
Ball bearing (10pcs)
By FUSHI
Features and specifications:
Miniature ball bearings have a wide range of functions. Bearings are devices that allow parts to move relative to one another in a constrained fashion. The two most common types of bearings are plain bearings and rolling bearings. The most well-known of the rolling variety of bearings is the ball. A ball bearing can be highly effective in reducing friction between two parts that need to move freely.
693-ZZ Bearing Specifications (Metric)
Bearing Type: Shielded
Bore Dia (d): 3.000 mm
Outer Dia (D): 8.000 mm
Width (B): 4.000 mm
Radius (min) (rs): 0.15 mm
Dynamic Load Rating (Cr): 474 N
Static Load Rating (Cor): 144 N
Max Speed (Grease): 50,000 rpm
Max Speed (Oil): 57,000 rpm
Max. Shaft Shoulder Dia. Inner (Ui): 4.4 mm
Min. Housing Shoulder Dia., Outer (Uo): 7.25 mm
Ball Qty: 6
Ball Dia (Dw): 1.588 mm
Weight (g): 0.8 grams
Precision: ABEC-7
Standard Clearance: C0/(K25)
Material: 52100 Chrome Steel
More about the 693ZZ bearing
Fig 01. Structure of Bearing Model 693
Inner & Outer Ring + Cage + Steel Balls + Grease + Shield = 693 Bearing
![](https://ae01.alicdn.com/kf/HTB1wXqodkSWBuNjSszdq6zeSpXa9.jpg)
Fig 02. Our 693 bearing is pre-lubricated with grease
The main purpose of lubrication is to reduce friction that may cause premature failure.
![](https://ae01.alicdn.com/kf/HTB13FJ3df9TBuNjy0Fcq6zeiFXai.jpg)
Fig 03. With nylon plastic retainers
Used for high speed rotation and a low noise level.
![](https://ae01.alicdn.com/kf/HTB1SZyndb9YBuNjy0Fgq6AxcXXau.jpg)
Fig 04. This bearing is made of chrome steel material
The typical surface hardness for bearing components made from this material ranges from 60-64 on the Rockwell hardness C scale (Rc).
![](https://ae01.alicdn.com/kf/HTB1hk4ldbSYBuNjSspfq6AZCpXa7.jpg)
Fig 05. Bore Dia (d): 3.000 mm
![](https://ae01.alicdn.com/kf/HTB13kwQarZnBKNjSZFKq6AGOVXam.jpg)
Fig 06. Outer Dia (D): 8.000 mm
![](https://ae01.alicdn.com/kf/HTB1kMX8deGSBuNjSspbq6AiipXaC.jpg)
Fig 07. Width (B): 4.000 mm
![](https://ae01.alicdn.com/kf/HTB1ETdtaTdYBeNkSmLyq6xfnVXaX.jpg)
Fig 08. Application Scene
Please feel free to contact us if you have any questions
![](https://ae01.alicdn.com/kf/HTB1Sih5RFXXXXcdXVXX760XFXXXG.png)
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![693ZZ Bearing 3*8*4 Mm ( 10 Pcs ) ABEC-7 Miniature Engine 693 ZZ Ball Bearing 619/3ZZ R-830ZZ EMQ Motors Fans 693Z 693 Bearings](http://644885-a3.myshopify.com/cdn/shop/files/S4d40886ad52a4da791dbeaa91b91fff5W.webp?v=1717237749&width=1445)