TECHNICAL SPECS
Model: SMR689 2OS
Inner (d): 9 mm
Outer (D): 17 mm
Width (B): 5 mm
Grade: ABEC-7
Material: Stainless Steel Rings
Closures: Non-Contact Rubber Sealed
Balls: Si3N4 Ceramic Balls
Lubrication: Self Lubricated ( NO Grease)
Qty: You will get 2 pieces ball bearings
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.
