Worldwide Shipping
Worldwide Shipping
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
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
Fig 02. Our 693 bearing is pre-lubricated with grease
The main purpose of lubrication is to reduce friction that may cause premature failure.
Fig 03. With nylon plastic retainers
Used for high speed rotation and a low noise level.
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).
Fig 05. Bore Dia (d): 3.000 mm
Fig 06. Outer Dia (D): 8.000 mm
Fig 07. Width (B): 4.000 mm
Fig 08. Application Scene
Please feel free to contact us if you have any questions
SERVICES
Hot selling products from top sellers
All orders shipped from AliExpress warehouses within 24 hours
Dedicated customer service
PACKAGING AND SHIPPING GUARANTEE
Enjoy peace of mind with AliExpress door-to-door packaging and shipping protection
Collections: Recommended products (Seguno)
Type: Unknown Type
You can use this popup to promote newsletter signups, but that's not all! You could also omit the form and include action buttons linked to your pages and products instead. Or, use the popup to present an 'agree-to-terms' message that must be accepted before a visitor enters your shop!