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The meaning of the suffix of each brand bearing
Source: China Bearing Network Time: 2013-04-16
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GS thrust cylindrical roller; thrust needle roller bearing race. Example: GS81107 - thrust cylindrical roller bearing 81107 seat.
K thrust roller and the holder of the bracket. Example: K81170.
K- Fit AFBMA specification series Inch tapered roller bearings with inner ring (inner cone) or outer ring (cone ring) with roller and holder assembly. Example: K-09067 series is the inner cone of 09000 tapered roller bearing body.
L Single bearing inner ring or outer ring. Example: LNU207 cylindrical roller bearing NU207 inner ring.
SKF bearing rear code (suffix) and its meaning:
Single row angular touch ball bearing ACD touch angle is 25 degrees.
B The touch angle is 40 degrees.
The CC touch angle is 12 degrees.
Spherical roller bearings CAC; ECAC; CA; ECA These are used for large-scale bearings; the rollers are symmetrical. The inner ring has fixed ribs on both sides; the active circlip is guided by the inner ring. The bracket is made of brass or Steel solid frame. CAC and ECAC bearing roller and raceway surface are optimized for machining; help roller guide; and reduce conflicts. ECAC type with reinforced roller;
-2F Spherical ball bearings with dust ring on both sides.
-2FF outer spherical ball bearing with combined dust ring on both sides.
G universal with single row angular touch ball bearings. When placed face to face or back to back; the bearing has a certain preload before the device.
GA face to face; when placed back to back; there is a lighter preload in the bearing.
GB face to face; when placed back to back; medium preload in the bearing.
GC face to face; when placed back to back; heavy preload in the bearing.
K tapered hole; taper 1:12.
K30 tapered hole; taper 1:30.
FAG bearing pre-code (prefix) and its meaning:
R is placed directly before the bearing code; other pre-codes are separated from the root code by small dots.
GS thrust cylindrical roller bearing race. Example: GS. 81112KC-Combination of Roller and Holder. Example: Assembly of thrust cylindrical roller and bracket. 81108.
FAG bearing rear code (suffix) and its meaning:
F-steel body adheres to the frame; roll body guide.
The FA-steel entity adheres to the frame; the outer ring guides.
FAS-steel body adheres to the frame; outer ring guides with lubrication grooves.
FB-steel body adheres to the frame; inner ring guides.
FBS-steel body adheres to the frame; inner ring guides with lubrication grooves.
FH-steel solids adhere to the frame; carburized and quenched.
H, H1-carburized and quenched to stand.
The P5-public service level meets the 5th level of the international standard ISO rules.
P4 - The level of public service is in line with the international standard ISO level 4.
P2-Public service level conforms to the international standard ISO level 2 (excluding tapered roller bearings) NSK bearing pre-code meaning:
F Deep groove ball bearings with flanged outer ring (for d less than 10 mm); Example: F605.
HR high load tapered roller bearings; example: HR30207J.
NSK bearing post code meaning:
A internally depicts a bearing that is different from the specification.
A corner touch ball bearing; touch angle is 30 degrees.
A5 angular touch ball bearing; touch angle is 25 degrees Z; ZS side with steel dust cover.
ZZ; ZZS with steel plate dust cover on both sides.
D; DU with a touch rubber seal on one side.
C1 radial bearing radial clearance; smaller than C2 clearance.
C2 radial bearing radial clearance; smaller than the gauge clearance.
CN (saving) radial bearing radial gauge clearance.
C3 radial bearing radial clearance; larger than the specification clearance.
C4 radial bearing radial clearance; larger than C3 clearance.
NTN bearing suffix meaning:
B 40° touch angle, A 30° touch angle, C 15° touch angle, J pressure steel holder, LI machined copper alloy holder, DB back to back equipment, DF face-to-face equipment, CS radial clearance is larger than the specification clearance .
TIMKEN bearing suffix meaning:
The outer ring of the AB has a flanged outer ring, which is different from the inner diameter and the rounded outer diameter of the inner type. The inner outer ring is not the same as the outer type. The outer diameter/width/or the radius of the corner is AD. The outer ring double outer ring, and the basic type can not exchange CR inner/outer ring outer raceway with rib flange bearing series CX inner ring scale is different from the basic type, can not exchange D inner/outer ring double inner ring or double outer ring, The INA bearing suffix meaning is not exchanged with the fundamental type:
P- bearing with sealing ring on one side PP- bearing with sealing ring on both sides RS- bearing with sealing ring on one side 2RS- bearing with sealing ring on both sides P6--scale public service and several bearings with high precision requirements P5-scale public service and several Bearings with high precision requirements P4-scale public service and a few high precision bearings KOYO bearing front code meaning:
4CRI- four-row cylindrical roller bearing inner ring; example: 4CRI4560F4CRO- four-row cylindrical roller bearing outer ring; example: 4CRO660AFE-magnetic motor ball bearing; outer diameter is positive public service; example: E10EN- magnetic motor ball bearing; The diameter is negative public service; for example: EN10KOYO bearing suffix meaning:
A-angle touch bearing; touch angle 30 degrees (not marked); example: 7210B- angular touch bearing; touch angle 40 degrees; example: 7210BC- angular touch bearing; touch angle 15 degrees; example: 7210CRSC- silicone rubber RS Type seal; Example: 6210RSCRSD- polypropylene rubber RS ​​seal; Example: 6210RSDRSE- single side; rib guide touch synthetic rubber seal; Example: 6206RSEK- with tapered bore bearing; taper 1:12; Example: 1210KK30- Tapered hole bearing; taper 1:30; Example: 23026K30N- outer ring with snap groove bearing; Example: 6206NC - Tapered roller bearing with locking hole NR- outer ring with snap ring bearing; Example: 6210NRY- less than Non-standard chamfering of gauge chamfering scale; Example: 30206YS- Tapered roller bearing; Non-standard chamfering (inclination) SG- Tapered roller bearing with spiral groove
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