Designation system - SKF
Manufacturer
Suffix
Prefix
Found: 897
| Suffix/Prefix | Manufacturer | Description | Example | Refers to |
|---|---|---|---|---|
| DF03 | SKF | Tapered roller bearing face/face with an outer spacer with lubrication holes. No groove. | 31312 J2/Q DF03 | Tapered roller bearing |
| G | SKF | Grease, a second letter indicates the operating temperature range of the grease and the third letter identifies the actual grease. The significance of the second letter is as follows: E Extreme pressure grease F Food compatible grease H,J High temperature grease, -20 to +150 C L Low temperature grease, -50 to + 80 C M Medium temperature grease, -30 to +110 C W,X Low/high temperature grease, -40 to +140 C A figure following the three-letter grease code indicates that the filling degree deviates from the standard;Figures 1, 2, and 3 indicate smaller than standard, 4 upto 9 a larger fill. Examples; GEA Extreme pressure grease, standard fill GLB2 Low temperature grease, 15 to 25% fill | ||
| HC, HC5 | SKF | Rolling elements made of silicon nitride. | 6001-2RZ/ HC5 C3WTF1 | Hybrid bearings |
| HC4 | SKF | Full ceramic bearings. | ||
| C.. | SKF | Special clearance. Two- or three-figure number after the letter C indicates the average axial clearance in microns. | Paired tapered roller bearing | |
| C2L | SKF | Axial internal clearance corresponds to the lower half of the group C2. | QJ 207 N2MA/ C2L | |
| CX | SKF | α=15 contact angle, modified internal design. | 7000 CX GA/P4A | Angular contact ball bearings |
| EM | SKF | Optimized internal design and machined brass cage. | 29244 EM | Spherical roller thrust bearing |
| HT | SKF | Grease for high temperatures (–20 to +130 C), followed by a two-figure number which identifies the actual grease; grease quantities which differ from the standard fill are identified by a letter following HTxx: A Grease quantity less than standard B Grease quantity greater than standard C Grease quantity greater than B. More recently A, B and C have been replaced by F followed by one figure; F1 = A, F7 = B and F9 = C; the figures have the same significance as those used with the new grease codes Gxx. | 6202-2Z/C3L HT23 | |
| TL | SKF | Same as L, but with key slot positions for a locking clip. | Adapter sleeves |