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Description
- Available in three sizes up to a length of 5,500 mm
- With planetary gearbox (PG) or angular planetary gearbox (WPG) with various gear ratios
- Pneumatic clamping element is optional
- Wide range of accessories available
Product description
Omega modules (OBB) with Ball Rail System and tooth belt drive for speeds of up to 5.0 m/s. Omega modules are ready-to-install linear motion axes for any installation position in freely configurable lengths of up to 5,500 mm. Due to the constructive structure, omega modules are particularly suited to applications where the frame extends into the working area.
Structural design
- Frame made of anodized aluminum frame with high rigidity
- Integrated Rexroth Ball Rail System
- Carriage made from aluminum frame with Ball Runner Block
- Driven by toothed belt for traversing speeds of up to 5 m/s
Attachments
- Switch (proximity and mechanical)
- Socket and plug
- Cable duct made of aluminum profile
Structural design
(without switch)
1 Frame
2 Carriage
3 End plate
4 Belt clamp
5 Toothed belt
6 Lube fitting (on both end faces)
7 Air port (for carriage with clamping element)
8 Clamping hub for motor mounting
9 Angular planetary gearbox (WPG)
10 Motor
11 Planetary gearbox (PG)
12 Mounting flange
| 1) | Version without gear (for individual motor mounting) |
| 2) | Version with angular planetary gearbox |
| 3) | Version with planetary gearbox |
Additional components
Frame moves
(fixed carriage)
1 Frame
2 Carriage
3 Mechanical switch (with additional components)
4 Proximity switch (with additional components)
5 Control strip on the frame
6 Socket and plug
7 Switch installation profile
Additional components
Carriage moves
(fixed frame)
1 Frame
2 Carriage
3 Mechanical switch (with additional components)
4 Proximity switch (with additional components)
5 Switching angle (on carriage)
6 Socket and plug
Accessories
8 Shock absorbers
Attachment option for additional shock absorbers
Shock absorbers are available as accessories and can be ordered separately with the corresponding material number
Technical data
Maximum values for each size
| Size | OBB-055 | OBB-085 | OBB-120 | |
| C | N | 20790 | 60600 | 96200 |
| Mt | Nm | 195 | 860 | 2360 |
| ML | Nm | 1400 | 6100 | 10390 |
| Mx max | Nm | 62 | 280 | 776 |
| My max | Nm | 440 | 1960 | 3424 |
| Mz max | Nm | 440 | 1960 | 3424 |
| Fy max | N | 6500 | 19760 | 31700 |
| Fz max | N | 6500 | 19760 | 31700 |
| Lmax | mm | 5500 | ||
| amax | m/s² | 50 | ||
| vmax 1) | m/s | 5 | ||
| 1) | The disclosed values apply to the OBB without gear and have been reduced in relation to the specified motor shaft. |
| Maximum values depends on the selected configuration. |
Legend
| Symbol | Description | Unit |
| C | Dynamic load capacity, linear guide | N |
| Mt | Dynamic torsional moment load capacity | Nm |
| ML | Dynamic longitudinal moment load capacity | Nm |
| Mx max | Maximum admissible torsional moment around the x-axis | Nm |
| My max | Maximum admissible torsional moment around the y-axis | Nm |
| Mz max | Maximum admissible torsional moment around the z-axis | Nm |
| Fy max | Maximum dynamic load in y-direction | N |
| Fz max | Maximum dynamic load in z-direction | N |
| Lmax | Maximum length | mm |
| amax | Maximum acceleration travel | m/s2 |
| vmax | Maximum permissible speed | m/s |
Mounting
Mounting
General notes
The fastening of the omega modules is done with different fastening elements:
- Clamping fixtures
- Sliding blocks
- Square nuts
- Screws for T-slots as per DIN 787 (no picture).
- Centering rings on the carriage as positioning aid
Length depending on the mounting base.
Mounting on the carriage (TT) (frame (HK) moves)
| 1) | Mounting with clamping fixtures |
| 2) | Mounting with sliding blocks |
| 3) | Centering rings |
| OBB | A | B | C | D |
| (mm) | (mm) | (mm) | (mm) | |
| 55 | 91 | 105 | 40 | 50 |
| 85 | 130 | 148 | 40 | 80 |
| 120 | 157 | 175 | 80 | 100 |
Attention: Do not support the Omega Module at the end plates!
The frame is the load-bearing part!
Mounting on the frame (HK) (carriage (TT) moves)
| 1) | Mounting with clamping fixtures |
| 2) | Mounting with sliding blocks |
Dimensions
| OBB | A | B | C |
| (mm) | (mm) | (mm) | |
| 55 | 71 | 85 | 25 |
| 85 | 101 | 115 | 40 |
| 120 | 144 | 162 | 80 |
Switch mounting – frame moves (carriage fixed)
Switching principle
- Proximity or mechanical switches on the carriage (TT)
- Switch activation via switch strip on the frame (TT)
Overview of the switching system
3 Mechanical switch (with additional components)
4 Proximity switch (with additional components)
5 Control strip on the frame
6 Socket and plug
7 Switch installation profile
| 1) | Proximity switches with additional components |
| 2) | Mechanical switches with additional components |
Switch mounting – carriage moves (frame fixed)
Switching principle
- Inductive or mechanical switches on the frame (HK)
- Switch activation via the switching angle at the carriage (TT)
Overview of the switching system
3 Mechanical switch (with additional components)
4 Proximity switch (with additional components)
5 Switching angle
6 Socket and plug
7 Cable duct
| 1) | Proximity switches with additional components |
| 2) | Mechanical switches with additional components |
| 3) | Cable duct |
| 4) | Proximity switches with additional components / cable duct |
Information
End plate for omega mounting
The end plates of the omega module are equipped with mounting holes, threads and center holes for mounting additional devices.
You will find further information about possible combinations with the omega module OBB in the "Linear motion systems connection technology" catalog.
| 1) | Center holes for centering rings |
Accessories
Combination examples
| 1) | End of range (‒) |
| 2) | Reference |
| 3) | End of range (+) |
| 4) | Sensors with plug |
| 5) | Sensors with free cable end |
| 6) | Plug |
| 7) | Sensor extensions |
| 8) | Cable specification: suitable for flexing installation, torsion-resistant, weld spark-resistant |
| 9) | Plug |
| 10) | Adapter |
| 1) | End of range (‒) |
| 2) | Reference |
| 3) | End of range (+) |
| 4) | Screw plug |
| 5) | Sensors with free cable end |
| 6) | Plug |
| 7) | Sensors with plug |
| 8) | Passive distributor |
| 9) | Holding plate |
| 10) | Passive distributor |
| 11) | Extensions for passive distributors |
| 12) | Cable specification: suitable for flexing installation, torsion-resistant, suitable for welding sparks |
| 13) | Higher-level control system |
Clamping fixtures for Omega Modules
Clamping fixtures for Omega Modules
Sliding blocks and springs for Omega Modules
Sliding blocks and springs for Omega Modules
Centering rings for Omega Modules
Centering rings for Omega Modules
Shock absorbers for Omega Modules
Shock absorbers for Omega Modules
Proximity sensor with free line end
Proximity sensor with free line end
Proximity sensor with M8x1 plug
Proximity sensor with M8x1 plug
Additional components for inductive sensor
Additional components for inductive sensor
Mechanical switch
Mechanical switch
Mechanical switch with M8x1 plug
Mechanical switch with M8x1 plug
Extension pieces - assembled on one side
Extension pieces - assembled on one side
Extension pieces - assembled on two sides
Extension pieces - assembled on two sides
Plug-in connector
Plug-in connector
Adapter
Adapter
Passive distributors
Passive distributors
Holding clip
Holding clip
Plug screw
Plug screw
Extension pieces
Extension pieces
Socket and plug
R117500153
Socket and plug
R117500153
Switching angle
Switching angle
Control strips with additional components
Control strips with additional components
Switch mounting profile with additional components
Switch mounting profile with additional components
Carriage with clamping unit for Omega Modules
Carriage with clamping unit for Omega Modules
Safety Instructions
Required and supplementary documentation
For further instructions and information, please refer to the documentation for this product.
You can find PDF files of these documents on the Internet at www.boschrexroth.com/mediadirectory.
If you are unsure about using this product, please contact Bosch Rexroth.
Ordering codes
Order overview
| Size | Part number | Short product name | CAD data | Buy |
| OBB-055 | R114410000 | OBB-055-NN-1 | ||
| OBB-085 | R114430000 | OBB-085-NN-1 | ||
| OBB-120 | R114460000 | OBB-120-NN-1 |
Explanation of short product name
| Omega Module OBB example | OBB-085-NN-1 | |
| System | O = | Omega Module |
| Linear guide | B = | Ball Guide Rails /Ball Rail Systems |
| Drive | B = | Toothed Belts / Toothed Belt Drives |
| Size | 085 = | 055/085/120 |
| Version | NN = | Normal version |
| Generation | 1 = | Product generation 1 |
Downloads
 | Ommega Modules OBB Manual | R320103025_EN | 2018-07-01 | English | PDF | 2.9MB Product Groups: Omega Modules |
| Declaration of Incorporation for single axis Linear Motion Systems Certificate | R320103141 | 2020-06-01 | All languages | PDF | 409k Product Groups: Linear axes and electromechanical cylinders |
| Safety Instructions for Linear Motion Systems Manual | R320103152_en | 2015-01-01 | English | PDF | 593k Product Groups: Linear axes and electromechanical cylinders |
| Omega Modules OBB Catalog | R999001179 | 2016-05-01 | English | PDF | 8.5MB Product Groups: Omega Modules |
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