| Internal Design Suffixes | |
|---|---|
| A | Deviating or Modified internal Design |
| AA | Deviating or Modified internal Design |
| C | Deviating or Modified internal Design |
| D | Deviating or Modified internal Design |
| E | Reinforced Ball Set |
| External Design Suffixes | |
|---|---|
| N | Snap Ring groove in the outer ring |
| NR | Snap Ring groove in the outer ring, with Snap Ring |
| N1 | One locating slot (notch) in one outer ring side face |
| R | Flanged outer Ring |
| RS1 | Contact Seal (material - NBR), seal on one side |
| 2RS1 | Contact Seal (material - NBR), seal on Both side |
| RS2 | Contact Seal (material - FKM), seal on one side |
| 2RS2 | Contact Seal (material - FKM), seal on Both side |
| RSH | Contact Seal (material - NBR), seal on one side |
| 2RSH | Contact Seal (material - NBR), seal on Both side |
| RSH2 | Contact Seal (material - FKM), seal on one side |
| 2RSH2 | Contact Seal (material - FKM), seal on Both side |
| RSL | Low-friction seal, NBR |
| 2RSL | Low-friction seal, NBR |
| RST | Low-friction seal, NBR |
| 2RST | Low-friction seal, NBR |
| RZ | Non-Contact Seal, NBR |
| 2RZ | Non-Contact Seal, NBR |
| Z | Shield on one side |
| 2Z | Shield on both side |
| ZNBR | Shield on one side, snap ring groove in the outer ring, with snap ring on the same side as the shield |
| ZNR | Shield on one side, snap ring groove in the outer ring, with snap ring on the opposite side as the shield |
| 2ZNR | Shield on both sides, snap ring groove in the outer ring, with snap ring, with snap ring |
| 2ZS | Shield on both sides, held in place by a retaining ring |
| X | Boundary Dimensions not in accordance with ISO dimension series |
Internal Design Suffixes
A - Deviating or Modified internal Design
AA - Deviating or Modified internal Design
C - Deviating or Modified internal Design
D - Deviating or Modified internal Design
E - Reinforced Ball Set
External Design Suffixes
N - Snap Ring groove in the outer ring
NR - Snap Ring groove in the outer ring, with Snap Ring
N1 - One locating slot (notch) in one outer ring side face
R - Flanged outer Ring
RS1 - Contact Seal (material - NBR), seal on one side
NBR - Nitrile Butadiene Rubber
2RS1 - Contact Seal (material - NBR), seal on Both side
NBR - Nitrile Butadiene Rubber
RS2 - Contact Seal (material - FKM), seal on one side
FKM - Fluoro Rubber
2RS2 - Contact Seal (material - FKM), seal on Both side
FKM - Fluoro Rubber
RSH - Contact Seal (material - NBR), seal on one side
NBR - Nitrile Butadiene Rubber
2RSH - Contact Seal (material - NBR), seal on Both side
NBR - Nitrile Butadiene Rubber
RSH2 - Contact Seal (material - FKM), seal on one side
FKM - Fluoro Rubber
2RSH2 - Contact Seal (material - FKM), seal on Both side
FKM - Fluoro Rubber
RSL - Low-friction seal, NBR
NBR - Nitrile Butadiene Rubber
2RSL - Low-friction seal, NBR
NBR - Nitrile Butadiene Rubber
RST - Low-friction seal, NBR
NBR - Nitrile Butadiene Rubber
2RST - Low-friction seal, NBR
NBR - Nitrile Butadiene Rubber
RZ - Non-Contact Seal, NBR
NBR - Nitrile Butadiene Rubber
2RZ - Non-Contact Seal, NBR
NBR - Nitrile Butadiene Rubber
Z - Shield on one side
2Z - Shield on both side
ZNBR - Shield on one side, snap ring groove in the outer ring, with snap ring on the same side as the shield
ZNR - Shield on one side, snap ring groove in the outer ring, with snap ring on the opposite side as the shield
2ZNR - Shield on both sides, snap ring groove in the outer ring, with snap ring, with snap ring
2ZS - Shield on both sides, held in place by a retaining ring
X - Boundary Dimensions not in accordance with ISO dimension series
Deep Groove Ball Bearings
CAGE Design Suffixes
- For Stainless Steel bearings Stamped stainless steel cage, Ball Centred
For other Bearings Stamped steel cage, Ball Centred
M -
Machined Brass cage, Ball centred; different designs or material grades are identified by a number following the M, eg. M2
MA (S) -
Machined Brass cage, outer Ring centred. The 'S' indicates a lubrication Groove in the guiding surface.
MB (S) -
Machined Brass cage, inner Ring centred. The 'S' indicates a lubrication Groove in the guiding surface.
TN -
PA66 cage, ball Centred
TN9 -
Glass Fibre reinforced PA66 cage, Ball Centred
TN9/VG1561 -
Glass Fibre reinforced PA46 cage, Ball Centred
TNH -
Glass Fibre reinforced PEEK cage, Ball Centred
Materials, heat treatment Suffixes
HA1 -
Case-hardened inner and outer rings
Accuracy, clearance, preload, quiet running Suffixes
P5 -
Dimensional and running tolerances to class P5
P6 -
Dimensional and running tolerances to class P6
P52 -
P5 + C2
P62 -
P6 + C2
P63 -
P6 + C3
CN -
Normal radial internal clearance; only used together with an additional letter that identifies a reduced or displaced clearance range
H = Reduced clearance range corresponding to the upper half of the actual clearance range
L = Reduced clearance range corresponding to the lower half of the actual clearance range
P = Displaced clearance range comprising the upper half of the actual clearance range plus the lower half of the next larger clearance range
The above letters are also used together with the clearance classes C2, C3, C4 and C5, e.g. C2H
C1 -
Radial internal clearance smaller than C2
C2 -
Radial internal clearance smaller than Normal
CN -
Normal Radial internal clearance
C3 -
Radial internal clearance greater than Normal
C4 -
Radial internal clearance greater than C3
C5 -
Radial internal clearance greater than C4
CA -
Matched bearing set with small axial internal clearance
GA -
Matched bearing set with light preload
Bearing sets, matched bearings Suffixes
DB -
Two bearings matched for mounting back-to-back
DF -
Two bearings matched for mounting face-to-face
DT -
Two bearings matched for mounting in tandem
Stabilization Suffixes
S0 -
Bearing rings heat stabilized for operating temperatures ≤ 150 °C (300 °F)
S1 -
Bearing rings heat stabilized for operating temperatures ≤ 200 °C (390 °F)
Lubrication Suffixes
GE2
GFJ
GJN
HT
LHT23
LT
LT10
MT33
MT47
VT378
WT
Other variants Suffixes
VP311 -
Food Line bearing: Blue-colored contact seal made of FDA and EC approved NBR and lubricant (GFJ) registered by NSF as category H1
VQ658 -
Quiet running properties
