2PC S688CW4 2RS ZZ Bearing 8x16x4 mm ABEC-3 Stainless Steel Hybrid Ceramic Bearing S688W4 Ball Z

TECHNICAL SPECS
Model: S688CW4 2RS/ZZ
Inner (d): 8 mm
Outer (D): 16 mm
Width (B): 4 mm
Grade: ABEC-7
Material: Stainless Steel Rings
Closures: Non-Contact Rubber/Metal Sealed
Balls: Si3N4 Ceramic Balls
Lubrication: Self Lubricated ( NO Grease)
Qty: You will get 2 pieces ball bearing
Should I oil ceramic bearings
Full ceramic bearings can be run completely dry.
They do not need lubrication to run.
Ceramic is non-porous, unlike steel, as a result it is virtually frictionless.
Because there is no heat buildup and virtually no friction,
full ceramic bearings can be run completely dry.
What are the advantages of ceramic balls
1.Since ceramics are hardly corrosive,
ceramic rolling bearings are suitable for operation under harsh conditions filled with corrosive media.
2.Since the density of the ceramic rolling ball is lower than that of the steel, the weight is much lighter,
so the centrifugal effect of the outer ring can be reduced by 40% when rotating, and the service life is greatly extended.
3.Since the modulus of elasticity of ceramic is higher than that of steel,
it is not easily deformed when subjected to force,
so it is advantageous to increase the working speed and achieve higher precision.
Cleaning Bearings:
Most reels are designed so the bearings can be removed for cleaning, greasing and replacement.
1.Solvents like mineral spirits, brake cleaning fluid, acetone, naphtha, denatured alcohol, lighter fluid, etc.
are irritants, flammable and dangerous to breathe, so exercise appropriate precautions if you use them!
2.Never clean bearings in bleach based products,
since it can damage many metals.
3.Eye protection should be worn if using air to spin or dry bearing.
Bearings can become projectiles from poorly fitted bearings.
4. Avoid the use of solvents that contain perfumes or other similar additives.
For example, the fragrances in beauty shop acetone will leave a deposit that will affect the adherence of grease.
Why Upgrading Berings
Fishing reels have developed over the years to become lighter, stronger, smoother and more reliable.
Bearings play a large part in this development.
Better steel, closer tolerances, more effective lubricants and automated assembly mean that high precision fishing reel bearings are more affordable than ever.
Most reels use ball bearings from one or two bearings to over ten in the spools, worm gears and handles of high-end reels.
FAQ
1. Why do the bearings I receive have shaking
The clearance of the bearing is related to the play.
The default is the standard C0 clearance, which is usually 3-18um.
The corresponding principle is shown in the figure below.
If you don't need to shake, please choose C2 small clearance bearing,
If you have any questions, please contact us before purchasing.
2. What is the accuracy of ABEC-1
ABEC is the American ANSI standard.
The corresponding German DIN standard and international ISO standard are as follows:
3. Do you provide logistics tracking information
Yes, all our products