| B20 |
Reduced width tolerance |
| C3 |
Bearing internal clearane greater than Normal (CN) |
| C4 |
Bearing internal clearance greater than C3 |
| C4H |
Bearing internal clearance greater than C3(upper half of C4 clearance) |
| C5 |
Bearing internal clearance greater than C4 |
| C5H |
Bearing internal clearance greater than C4(upper half of C5 clearance) |
| CA |
1 Spherical roller bearing of C design.but with retaining flanges on the inner ring and a machined cage |
2.Singl row angular contact ball bearings for universal matching.
Δύο ρουλεμάν τοποθετημένα back-to-face θα έχουν αξονική εσωτερική ανοχή μικρότερη από Normal(CB) πριν την τοποθέτηση |
| CB |
1.Single row angular contact ball bearings for universal matching. |
| Δύο ρουλεμάν τοποθετημένα back-to-back ή face-to-face θα έχουν Normal αξονική εσωτερική ανοχή πριν την τοποθέτηση |
| 2. Controlled axial clearance of a double row angular contact ball bearing |
| CC |
1. Spherical roller bearing of C design but with enhanced roller guidance |
| 2. Single row angular contact ball bearing for universal matching. |
| Δύο ρουλεμάν τοποθετημένα back-to-back ή face-to-face θα έχουν αξονική εσωτερική ανοχή μεγαλύτερη από Normal (CB) πριν την τοποθέτηση |
| CL7C |
High-performance design for tapered roller bearings in pinion arrangements |
| DB |
Matched single row tapered roller bearing pair, arranged back-to-back. |
| Ένας αριθμός αμέσως μετά το DB προσδιορίζει το σχέδιο των ενδιάμεσων δακτυλίων |
| DF |
Matched single row tapered roller bearing pair, arranged face-to-face. |
| Ένας αριθμός αμέσως μετά το DF προσδιορίζει το σχέδιο του ενδιάμεσου δακτυλίου |
| DT |
Matched single row tapered roller bearing pair, arranged in tandem. A number immediately following the DT identifies the design of the intermediate rings |
| EC |
Optimized internal design incorporating more and/or larger rollers and with modified roller end/flange contact |
| G |
Single row angular contact ball bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have a "Normal" axial clearance |
| MA |
Machined brass cage, outer ring centred, used for oil lubrication |
| ML,MP |
Machined one-piece window-type brass cage, outer ring centred, used for oil lubrication |
| MR |
Machined one-piece window-type brass cage, rolling element centred |
| MR3D |
Machined one-piece window-type brass cage, special design |
| N |
Snap ring groove in the outer ring |
| N1 |
One locating slot (notch) in one outer ring side face |
| N2 |
Two locating slots (notches) 180.apart in one outer ring side face |
| N3 |
Snap ring groove in the outer ring,one locating slot (notch) in one outer ring side face |
| P4 |
Dimensional and running accuracy to IS0 tolerance class 4 |
| GA |
Single row angular contact ball bearing for universal matching. |
| Δύο ρουλεμάν τοποθετημένα back-to-back ή face-to-face θα έχουν ελαφριά προφόρτιση |
| GB |
Single row angular contact ball bearing for universal matching. |
| Δύο ρουλεμάν τοποθετημένα back-to-back ή face-to-face θα έχουν μέτρια προφόρτιση |
| GC |
Single row angular contact ball bearing for universal matching. |
| Δύο ρουλεμάν τοποθετημένα back-to-back ή face-to-face θα έχουν μεγάλη προφόρτιση |
| P5 |
Dimensional and running accuracy to IS0 tolerance class 5 |
| P54 |
P5 +C4 |
| P6 |
Dimensional and running accuracy to IS0 tolerance class 6 |
| P63 |
P6 +C3 |
| P64 |
P6 + C4 |
| P65H |
P6+C5H |
| Q |
Optimized contact geometry and surface finish |
| RS1 |
Sheet steel reinforced contact seal of acrylonitrile-butadiene rubber (NBR) on one side of the bearing |
| 2RS1 |
RS1 contact seal on both sides of the bearing |
| HA |
Case-hardened bearing or bearing components. For closer identification, HAis followed by one of the following figures |
| 0: Complete bearing |
| 1:Outer and inner rings |
| 2:Outer ring |
| 3:Inner ring |
| 4: Outer ring, inner ring and rolling elements |
| 5: Rolling elements |
| 6:Outer ring and rolling elements |
| 7:Inner ring and rolling elements |
| HB |
Bainite-hardened bearing or bearing component.For closer identification,HB is followed by one of the figures explained under HA |
| HC |
Bearing or bearing components of ceramic. For closer identification, HC is followed by one of the figures explained under HA |
| Example: HC5 Rolling elements made of silicon nitride |
| J,J1, J2 |
Pressed window-type steel cage |
| M |
Machined brass cage, rolling element centred |
| RSH |
Sheet steel reinforced contact seal of acrylonitrile-butadiene rubber (NBR) on one side of the bearing |
| 2RSH |
RSH contact seal on both sides of the bearing |
| RSL |
Sheet steel reinforced low-friction contact seal of acrylonitrile-butadiene rubber (NBR) on one side of the bearing |
| 2RSL |
RSL low-friction contact seal on both sides of the bearing |
| RZ |
Sheet steel reinforced low-friction seal of acrylonitrile-butadiene rubber (NBR) |
| 2RZ |
RZ low-friction seal on both sides of the bearing |
| S0 |
Bearing rings or washers dimensionally stabilized up to +150 ℃ |
| T |
T, followed by a figure, identifies the total width of single row tapered roller bearing pairs arranged back-to-back or in tandem |
| TNH |
Injection moulded cage of glass fibre reinforced polyetheretherketone (PEEK), rolling element centred |
| TN9 |
Injection moulded cage of glass fibre reinforced polyamide 66, rolling element centred |
| V... |
V combined with a second letter,identifies a variant group, and followed by a three-or four-figure number denotes variants not covered by "standard” designation suffixes. |
| VA:Application oriented variants |
| VB: Boundary dimension deviations |
| VE: External or internal deviations |
| VL: Coatings |
| VQ: Quality and tolerances other than standard |
| VS: Clearance and preload |
| VT: Lubrication |
| VU: Miscellaneous applications |
| Z |
Shield of pressed sheet steel on one side of the bearing |
| 2Z |
Z shield on both sides of the bearing |
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