Founded in 1990, China Famen Bearing Co., Ltd. is specialized ball bearing manufacturer and ball bearings distributor of all types of custom and cheap bearings. We obtained ISO9002, ISO14001, and QS9000 certificates in 1995 and 1996, 1999 respectively. Other advanced equipments include four RGB and RCI series heat treatment production lines with a treatment quantity totaling 1,500 kilograms per hour. The Multi-points temperature control meters and CNC display meters with bi-directional control have been adopted to complement these units.

There are thousands of sizes, shapes, and kinds of rolling bearings; ball bearings, roller bearings, needle bearings, and tapered roller bearings are the major kinds. Sizes run from small enough to run miniature motors to huge bearings used to support rotating parts in hydroelectric power plants; these large bearings can be ten feet (3.04 meters) in diameter and require a crane to install. The most common sizes can easily be held in one hand and are used in things like electric motors.
In these bearings, the rolling part is a ball, which rolls between inner and outer rings called races. The balls are held by a cage, which keeps them evenly spaced around the races. In addition to these parts, there are a lot of optional parts for special bearings, like seals to keep oil or grease in and dirt out, or screws to hold a bearing in place. We won't worry here about these fancy extras.

Almost all parts of all ball bearings are made of steel. Since the bearing has to stand up to a lot of stress, it needs to be made of very strong steel. The standard industry classification for the steel in these bearings is 52100, which means that it has one percent chromium and one percent carbon (called alloys when added to the basic steel). This steel can be made very hard and tough by heat treating. Where rusting might be a problem, bearings are made from 440C stainless steel.
The cage for the balls is traditionally made of thin steel, but some bearings now use molded plastic cages, because they cost less to make and cause less friction.
After the heat treatment process, the races are ready for finishing. However, the races are now too hard to cut with cutting tools, so the rest of the work must be done with grinding wheels. These are a lot like what you would find in any shop for sharpening drill bits and tools, except that several different kinds and shapes are needed to finish the races. Almost every place on the race is finished by grinding, which leaves a very smooth, accurate surface. The surfaces where the bearing fits into the machine must be very round, and the sides must be flat.

Our Bearings Products: ball bearing, wheel bearing, timken bearing, linear bearing, ceramic bearing, skf bearing, pillow block bearing, roller bearing, skateboard bearing, slewing bearing, thrust bearing, engine bearing, air bearing, nsk bearing, magnetic bearing, ntn bearing, load bearing, sleeve bearing, ina bearing, needle bearing, plain bearing, fag bearing, hub bearing, sliding bearing, clutch bearing, journal bearing, slide bearing, oilless bearing, bearing steel, deep groove ball bearing, deep groove ball bearing, auto bearing, koyo bearing, tapered roller bearing, iko bearing, spherical roller bearing, needle roller bearing, taper roller bearing, ball bearing slide, main bearing, flange bearing, general bearing, peer bearing, cylindrical roller bearing, rhp bearing, shaft bearing, torrington bearing, nmb bearing, thrust ball bearing, spherical bearing, rbc bearing, mrc bearing, radial bearing, fafnir bearing, stainless steel bearing, bridge bearing, pacific bearing, release bearing, dodge bearing, rod end bearing, rollway bearing, miniature bearing, water pump bearing, center bearing, mcgill bearing, bearing grease, sealmaster bearing, hydrostatic bearing

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