This page describes the complete order designation system for myonic AXDR double row angular contact roller bearings. Understanding the coding system helps you accurately specify the required bearing specifications.
Designation Structure
The complete order designation for AXDR bearings consists of the following parts:
| Code Part | Description | Example |
|---|---|---|
| AXDR | Series name - Double row angular contact roller bearing | AXDR |
| XXX | Bore diameter (mm) | 80, 150, 200, 350... |
| VX | Bearing type - Full complement design | VX |
| SA / SS | Fastening method | SA, SS |
| -PRR50 | Accuracy grade (optional) | -PRR50 |
| -AC | Bearing alignment (optional) | -AC |
| -JXXXX | Custom design (optional) | -J1234 |
| -L120 / -GXXX | Lubrication method (optional) | -L120, -G001 |
Bearing Type
| Code | Type | Description |
|---|---|---|
| VX | Full Complement Design | Full-complement roller element sets for maximum rigidity |
Fastening Methods
| Code | Fastening Method | Description |
|---|---|---|
| SA | Counterbores Opposite | Counterbores of inner and outer rings are on opposite sides (Grooves opposite) |
| SS | Counterbores Identical | Counterbores of inner and outer rings are on the same side (Grooves identical) |
Other fastening methods can be provided on request (variants with through holes or threaded holes)
Accuracy Grades
| Code | Accuracy Grade | Description |
|---|---|---|
| No marking | Standard running accuracy | P5 acc. DIN 620 dimensional tolerance |
| PRR50 | Restricted running accuracy | Axial and radial runout tolerances limited (approx. corresponds to P2/UP) |
Bearing Alignment
| Code | Alignment Method | Description |
|---|---|---|
| No marking | Standard | Standard preload alignment |
| AC | Custom alignment | Bearing preload adapted to custom alignment (for applications with support rings) |
Important: Support Ring Applications
If support rings are needed to increase bearing rigidity, be sure to specify the -AC suffix when ordering to ensure the bearing has the correct preload alignment.
Design Codes
| Code | Design Type | Description |
|---|---|---|
| No marking | Catalog standard design | According to product catalog standard specifications |
| JXXXX | Custom design | Custom design number (issued by myonic) |
Lubrication Methods
| Code | Lubrication Status | Description |
|---|---|---|
| No marking | Standard grease | Factory-filled with standard grease (Li soap base high-performance grease) |
| L120 | No grease, rust protection only | Suitable for oil lubrication applications (Fuchs Anticorit DF 19) |
| GXXX | Special grease | Special grease number (issued by myonic) |
Order Designation Examples
Example 1: AXDR 200VX-SA
- AXDR - Double row angular contact roller bearing series
- 200 - Bore diameter 200 mm
- VX - Full complement design
- SA - Counterbores opposite fastening
- Standard accuracy, standard alignment, standard grease
Example 2: AXDR 350VX-SS-PRR50
- AXDR - Double row angular contact roller bearing series
- 350 - Bore diameter 350 mm
- VX - Full complement design
- SS - Counterbores identical fastening
- PRR50 - Restricted running accuracy
Example 3: AXDR 260VX-SA-PRR50-AC-L120
- AXDR - Double row angular contact roller bearing series
- 260 - Bore diameter 260 mm
- VX - Full complement design
- SA - Counterbores opposite fastening
- PRR50 - Restricted running accuracy
- AC - Custom alignment (with support rings)
- L120 - No grease (suitable for oil lubrication)
Available Sizes
AXDR-VX Standard Sizes
50, 80, 100, 120, 150, 160, 180, 200, 210, 260, 325, 350, 395, 460, 580, 650 mm
For detailed dimension specifications, please refer to: AXDR-VX Dimension Tables
Ordering Instructions
Please Provide When Ordering
- Complete product order designation
- Required quantity
- Special requirements (if any)
- Delivery time requirements
For further technical details or special designs, please contact the myonic application engineering team.