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INA company bearing make up code
Source: China Bearing Network Time: 2014-02-14
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The post code in the make-up code is used to clarify some special layouts of the bearing; placed after the bearing code.
1. Clarification of the code numbers used in the scale tables These make-up codes apply to the bearings in the current specification; and are part of the bearing code (see scale table); they cannot be used for other bearings.
A; B; C; E- These symbols have no clear meaning; as needed; used to indicate certain descriptive features.
D- split needle roller and cage assembly
P- bearing with sealing ring on one side
PP- bearing with sealing ring on both sides
RS- bearing with seal on one side
2RS- bearing with sealing ring on both sides
TN- plastic cage
V-sealed bearing
X- Bearings and accessories that change the form factor in accordance with international normative rules; this make-up code is only used during the transition period.
When the layout is usually spherical, the X is also shown as a support roller with a cylindrical rolling surface and a curved roller.
Z-bearing with dust cover on one side
2Z- bearing with dust cover on both sides
ZW- needle roller and cage assembly; double row
2. Compensatory code with special public service and precision bearings The following codes are only applicable to some types of bearings listed in the scale table.
P- indicates the bearing of the usual scale and several precision requirements (no need to make up any code).
P6-scale public service and a few bearings with high precision requirements
P5-scale public service and a few bearings with high precision requirements
P4-scale public service and a few bearings with extremely high precision requirements
C2- Original radial clearance is less than C0
C0- normal original radial clearance (no need to make up the code)
C3- Original radial clearance is greater than C0
C4- The original radial clearance is larger than C3; the bearing with higher dimensional accuracy and a few precisions and the original radial clearance is different from the normal clearance; this make-up code can be combined.
H+...+...- Inner ring bearing with a narrower diameter of the inscribed circle; does not include drawn cup needle bearings.
G- Quality level of the needle roller.
SORT- Classification of the diameter of the needle roller in the needle roller and cage assembly; the limit of public service is in microns.
GP- Bearings tested by noise.
2S; 3S; S- This make-up code is used for two or more bearings; side-by-side device; the load is evenly distributed; the previous figures indicate the number of bearings that are selected in the same series of the same scale. The bearings or parts that are selected and classified cannot Exchanged.
3. Make up code with special layout bearing (1) Special bearings and parts
BIR- spherical inner ring raceway
BR- bearing surface treated by oxidation
AS. - The outer ring has smooth holes; the additional number is the number of smooth holes
ASR. - Smooth holes and grooves on the outer ring
EGS- inner ring raceway is machined by turning; no spiral grinding marks
FPM- G-series sealing ring made of fluorinated rubber
GS- Vertical housing made of cast steel
IS. - Smooth holes in the inner ring
ISR. - Smooth holes and oil grooves on the inner ring
PB- SG series vertical bearing in the rough drill connection hole
SK- Curved roller with hexagon socket
RGS- inner ring raceway reserved machining allowance (2) bearing with special grease smoothness
SM 01- Smooth with KP2K rolling bearing smooth grease in accordance with DIN51825; temperature scale is -30°C~+120°C
SM 02- Smooth with K3N rolling bearing smooth grease in accordance with DIN51825; temperature scale is -30°C~+140°C
SM 11- Smooth with KTC2E low temperature smooth grease in accordance with DIN51825; temperature scale is -50 ° C ~ +80 ° C
SM 27- Smooth with KH2R high temperature smooth grease in accordance with DIN51825; temperature scale -30°C~+175°C
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