skf bearing model suffix meaning Description

skf bearing model suffix D - K Part Description
skf bearing models up to ten thousand, each bearing models have a special distinction and Applied Materials, and the corresponding size and clearance, cage, etc., so there appears skf bearing suffix, it is also skf bearing an important part of the model, we can suffix part skf bearing model can easily identify the indicators of the bearing.
skf bearing model suffix D - F section explains skf bearing designation suffix G - K Part Description
D 1. deviation or modified internal design, same dimensions; in principle, letters of the same meaning as given bearing series together.
  E.g:
3310 D with two-component inner ring double row angular contact ball bearings
K 40 × 45 × 17 D Split needle roller and cage assembly (radial)
2. Meet ABMA standard (normally inch) double row tapered roller bearings with two roller and cage assembly (dual cone) or outer ring with two raceways (double drawn cup)
DB Two single row deep groove ball bearings (1), single row angular contact ball bearings (2) or single row tapered roller bearings, mounted back to back pairing with; DB behind letters indicating installed in the front bearing for axial clearance or preload degree; for paired tapered roller bearings, inner and / or outer ring spacers between design and configuration, to be placed between DB digit and letter behind.
  A light preload (2)
B is greater than A (2) of the pre-load
C is greater than B (2) of the pre-load
CA axial clearance less than general group (1,2)
CB standard axial clearance (1,2)
CC axial clearance greater than Normal (1,2)
C Special axial clearance, μm
GA Light preload (1)
GB pre-load (1)
G Special preload, daN
DF Two single row deep groove ball bearings, single row angular contact ball bearings or single row tapered roller bearings matched face to face with the installation; DF letter behind a section on the DB.
DG for two single row angular contact ball bearings common with that pair for back to back, face to face or pairing before and after installation; axial clearance and preload a supplemental type in DB section.
Thrust bearing DH with two bearing housings washers
DR two single row deep groove ball bearings or cylindrical roller bearings paired evenly distributed radial load
Thrust bearing with two shaft DS 1. washers
2. Separate radial needle roller and cage assembly
DT Two single row deep groove ball bearings, single row angular contact ball bearings or single row tapered roller bearings for the front pairing with installation; design and for paired tapered roller bearings, inner and / or outer ring of the cage configuration to immediately behind the two-digit DT.
D8 open design of deep groove ball bearings can be supplied as standard with shields or seals, but without outer ring seal groove
E deviation or modified internal design, same dimensions; in principle, letters bearing the same meaning as given together; usually indicates reinforced rolling element arrangement
  E.g:
Single row angular contact ball bearing with 40 ° contact angle and optimized internal design
EC single row cylindrical roller bearings, roller end with optimized internal design and modification / flange contacts
ECA CA design spherical roller bearings, but with reinforced rolling element arrangement
ECAC CAC design of spherical roller bearings, but with reinforced rolling element arrangement
Exx (x) E with two-digit or three-digit combination, that they can not use the generally applicable standard suffix indicates design modifications.
F machined steel or special cast iron cage; different designs or materials to a digital representation of F behind, for example: F1
FA machined steel or special cast iron cage; outer ring centered
FB machined steel or special cast iron cage; and the inner concentric
2F on both sides with a flat-slinger Y- bearing
skf bearing designation suffix G - K section explains skf bearing model suffix D - F Part Description
G arbitrary pairing of two single row angular contact ball bearings back to back or face to face with a pair of bearing "normal level" axial clearance
G .. Grease injection. The second letter indicates the oil's operating temperature range, the third letter indicates oil actually used. The meaning of the second letter is as follows:
  E-resistant extreme pressure grease
F can be used in the food industry grease
H, J high temperature grease, eg -20 to +130 degrees Celsius
L low temperature grease, such as -50 to +80 degrees Celsius
M Medium temperature grease, for example, -30 to +110 degrees Celsius
W, X Low / high temperature grease, eg -40 to +140 degrees Celsius

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