10PC 693ZZ (3x8x4mm) Bearing 693 Z Shielded Ball Bearings 619/3ZZ R-830ZZ ABEC-7

Description

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
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