Rolling bearings SKFcompany, rolling bearing parts and accessories for the complete code is composed of Basic code and additional code. Basic code from a code of bearings, size series code and inner diameter of code constitutes. Basic types of bearings, structure and size, and is the basis of bearing codes. Supplementary code is bearing structural shapes, dimensions, tolerances, technical requirements when there is a change in the Basic code added around the code. In the Basic code left before adding code for reset code, for identification, bearing components, Basic code right after adding code for reset code to indicate the differences with the original design or differences with existing production standards of design problems.
1) pre code
GS--thrust cylindrical roller, needle roller bearing thrust washer. Example: GS81107-thrust force cylindrical roller bearing 81,107 ring.
K--roller and cage thrust assemblies in the. Example: K81170.
K---in accordance with AFBMA standard series tapered roller bearing inner rings with roller and cage assembly (cone) or outer ring (bevel ring). Example: K-09067--series 09000 cone roller bearing inner cone.
L--separated bearing a single inner or outer ring. Example: LNU207--NU207 inner ring of cylindrical roller bearing.
30,207 L30207--tapered roller bearing outer ring.
R--to remove a single inner or outer ring of separable bearings. Example: RNU207--NU207 of cylindrical roller bearing outer ring with roller and cage assemblies. R30207--tapered roller bearing inner ring and cage assembly.
WS--thrust cylindrical roller, thrust needle shaft. Example: WS81107--shaft washer of the thrust force cylindrical roller bearing 81,107.
2. post code
If there are several post codes in the bearing code, then arranged these post codes are grouped in the following order: (1) interior design, (2) external design, and (3) cage, (4) other characteristics. (1) (2), (3) post in the Group leave half a character between code and Basic code margin; (2) dust cover and seals in the Group's post code is exception, in front of the post code reset by a hyphen "-", (4) put a slash before the post code in the group. Slash is also used to isolate two under the following two conditions (4) set of post code:
A. after the first reset code ends with a number, and after the second reset code when you start with a number. Example: 6205/P53/223316.
B. compression and (/or) after you move the clearance limits are reset after code followed by a post code that represents the type of grease, if omitted when slash can cause confusion. ; 6205-2Z/C2L/HT42 (=C2L+HT42).
(1) interior design
A,B,C,D,E--normal internal structure when there is a change, these post codes and their combinations are generally form part of the bearing of series codes, they are usually only used during the transition period, omitted after the transitional period do not have. However, some alternatives when they are structure, these reset code will become permanent. Their meaning is usually characteristic of a bearing type or bearing series. For example:
Single row angular contact ball bearings
ACD--contact angle of 25 degrees.
B--contact angle of 40 degrees.
CC--contact angle of 12 degrees.
CD--contact angle of 15 degrees.
BE---BE bearings contact angle is 40 degrees, the steel ball to increase, in a cage of glass fibre reinforced polyamide 6.6.
Double row angular contact ball bearings
A--outer diameter less than or equal to 90 mm bearings of standard design, there is no filling slots, cage of glass fibre reinforced polyamide 6.6.
E--with ball bearing one side for mounting more ball, and therefore have a higher radial and axial load capacity.
Self-aligning roller bearings
CAC,ECAC,CA,ECA--these are designed for large bearings, roller is symmetrical. Inner ring extended on both sides have fixed flanges, activity circlip inner boot. Cage of brass or steel as a whole entity. CAC and ECAC bearing roller and the Raceway surface has been optimized processing helps roller Guide, and reduce the friction. ECAC-with enhanced roller to increase load capacity.
CC,C,EC--this type of bearing rollers are symmetrical and the inner ring has no flanges. Each column with pressed steel cage roller. Retainer ring from the inner ring centred in the activity. EC bearing strengthened roller to increase load capacity. CC-bearing roller and the Raceway surface has been optimized processing helps roller Guide, and reduce the friction.
E--is the latest standard design SKF company, bearing rollers symmetrical, inner ring without flanges, iron bronze manufacturing activities in the retainer ring near the outer rings, cage-guided, each roller has a pressed steel cage. All the benefits of e-type bearing with CC-type bearings, cage to be placed in the more of the latest development of large diameter long rollers, bearing higher load capacities. E-type bearing with oil Groove in the outer ring and three oil holes, after you reset code subject w, to differentiate.
Cylindrical roller bearings
B--is surface treated roller (full complement roller bearings).


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