Designation Structure
The order designation of an AXRY-EX bearing is built up from the basic type code followed by several optional suffixes in a fixed sequence:
Basic Type Code
| Component | Description | Options |
|---|---|---|
| Construction series | Axial/radial roller bearing series | AXRY |
| Bore in mm | Bearing bore diameter | 50, 80, 100, 120, 150 |
| Bearing type | EX series identifier | EX (standard) |
Suffixes
Each suffix is appended to the basic type code in a fixed sequence (seal → accuracy → H1 → H2 → preload alignment → custom design → lubrication). Where nothing is specified, the standard configuration applies.
| Category | Suffix | Description | Details |
|---|---|---|---|
| Seal | (none) | No seal | Bearing supplied without seal |
| -AZ | Axial washer, sealed | Seal on the axial washer side | |
| -IZ | Inner ring, sealed | Seal on the inner ring side | |
| -2Z | Sealed on 2 sides | Seal on both sides | |
| Accuracy | (none) | Standard accuracy requirement | Standard running accuracy |
| -PRR50 | Axial and radial runout tolerances restricted | Running tolerances (axial and radial runout) constricted | |
| Connection dimension H1 | (none) | Standard tolerance | Standard tolerance |
| -H1 | Restricted connection dimension H1 | Limits H1 to control the table position, e.g. to adjust the labyrinth seal gap | |
| Connection dimension H2 | (none) | Standard tolerance | Standard tolerance |
| -H2 | Restricted connection dimension H2 | Limits H2 to control the adjacent construction, e.g. clearance of a worm gear drive | |
| Preload alignment | (none) | Standard alignment | Standard preload alignment |
| -AC | Alignment for supported L-section ring | Alignment for installation with whole-surface support of the L-section ring | |
| Design | (none) | Catalogue design | Catalogue standard design |
| -JXXXX | Customer-specific design (number issued by myonic) | May include specific preload values, special marking, special lubrication systems, changed dimensions/tolerances or outer ring rotation design | |
| Lubrication | (none) | Standard grease | Filled with standard grease |
| -L120 | Bearing ungreased, only preserved (e.g. for oil lubrication) | No grease, preservation only (for oil-lubricated applications) | |
| -GXXX | Special grease (number issued by myonic) | Special grease (number issued by myonic) |
Order Examples
| Complete type code | Description |
|---|---|
| AXRY 50-EX | Bore 50 mm, EX standard configuration, no seal, standard accuracy, standard grease |
| AXRY 100-EX-2Z | Bore 100 mm, sealed on both sides |
| AXRY 150-EX-PRR50 | Bore 150 mm, axial and radial runout tolerances restricted |
| AXRY 80-EX-H1-H2 | Bore 80 mm, both H1 and H2 connection dimensions restricted |
| AXRY 120-EX-AC | Bore 120 mm, alignment for whole-surface support of the L-section ring |
| AXRY 100-EX-L120 | Bore 100 mm, ungreased (preservation only), for oil-lubricated applications |
| AXRY 150-EX-2Z-PRR50-H1-H2-AC | Bore 150 mm, sealed on both sides, restricted runout, restricted H1/H2 dimensions, alignment for whole-surface support of the L-section ring |
Ordering Information
For further technical details or special designs, please contact sales@eb-system.com.
Note: When the -AC suffix is used (whole-surface support of the L-section ring), the bearing must be ordered specifically for this configuration. If a standard-aligned bearing is installed with whole-surface support, the friction torque increases by 10–20 %, and in part more.
Support ring design recommendation: the height of the support ring should be at least twice the height of the axial washer of the bearing.