TECHNICAL SPECS
Item: S689 2RS CB
Structure: Deep Groove
Bearing Material: 440C Stainless Steel
Ball Material:Ceramic Si3N4
Bearing Type : Hybrid ceramic ball bearing
Bore Dia (d): 9mm
Outer Dia (D): 17mm
Width (B): 5mm
Lubrication: Free of Grease Free of Runing
Magnetic: little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Bearing Grades: ABEC 7
WHAT IS A HYBEID CERAMIC BEARING?
A ceramic hybrid bearing is a combination of ceramic balls and stainless steel rings.
Advantage
(1), high temperature resistance, ceramic ball thermal expansion coefficient is small, in the high temperature environment will not cause the bearing ball to expand due to temperature, which greatly improves the use temperature of the entire bearing, the temperature of ordinary bearings is about 160 degrees, ceramic ball Can reach more than 220 degrees.
(2), the rotation speed is high, the ceramic ball has oil-free self-lubricating property, and the ceramic ball has a small friction coefficient, so the ceramic ball bearing has a high rotation speed. The bearing using the ceramic ball is the rotation speed of the general bearing of 1.5 times or more.
(3). Long life, ceramic ball can be added without any grease, which means that even if the grease is dry, the bearing can still work, thus avoiding the premature bearing damage caused by the dry grease in the ordinary bearing. The test and some customer feedback use the ceramic ball after the bearing life is 2-3 times that of ordinary bearings.
BEARING STRUCTURE
Stainless Steel Hybrid Ceramic Bearing=
+ Stainless Steel Outer Ring & Inner Ring
+Si3N4 Ceramic Balls
+Stainless Steel Cage
+ Metal Seals
RainDew Brand Story
As a professional bearing manufacturer and Bearing Manufacturer in China. Founded in 2007, it is located in the DongGuan China. It has a wealth of technical expertise in manufacturing various ball and roller bearings. Its automatic bearing production lines are of most advanced level both home and abroad, and produces 10 million pieces of bearing annually. We inspect bearings quality to ensure them performing exactly as specified. That is the reason for our continuing growth and success. In 2010, we established our ball bearings distributor trade company to do the export business of our bearings.
