Description
The BF Type bearing housing is a compact support unit for machined ball screw and spindle-drive shafts used in CNC machines, routers and automation systems. The series is available in BF10, BF12, BF15, BF17, BF20 and BF25 sizes, allowing the housing to be selected according to the machined shaft end and installation dimensions.
Use the dimensional drawings and table below to compare models, verify mounting geometry and download the corresponding 3D model for CAD integration and machine-layout planning.
Dimensions, Models and 3D Downloads
The drawings define the dimension references used in the technical table. Match the required housing size to the corresponding row and use the existing 3D download link for your design.
| Type | Download 3D Model | d | L | B | H | b+/-0,02 | h+/-0,02 | B1 | H1 | E | P | d3 | d4 | d5 | t | Weight kg | SKU |
| BF 10 | BF-10 | 8 | 20 | 60 | 39 | 30 | 22 | 34 | 32,5 | 15 | 46 | 5,5 | 6,3 | 10,8 | 5,0 | 0,29 | 1013001 |
| BF 12 | BF-12 | 10 | 20 | 60 | 43 | 30 | 25 | 34 | 32,5 | 18 | 46 | 5,5 | 6,3 | 10,8 | 1,5 | 0,3 | 1013002 |
| BF 15 | BF-15 | 15 | 20 | 70 | 48 | 35 | 28 | 40 | 38 | 18 | 54 | 5,5 | 6,3 | 11 | 6,5 | 0,38 | 1013003 |
| BF 17 | BF-17 | 17 | 23 | 86 | 64 | 43 | 39 | 50 | 55 | 28 | 68 | 6,6 | 8,7 | 14 | 8,6 | 0,74 | 1013004 |
| BF 20 | BF-20 | 20 | 26 | 88 | 60 | 44 | 34 | 52 | 50 | 22 | 70 | 6,6 | 8,7 | 14 | 8,6 | 0,76 | 1013005 |
| BF 25 | BF-25 | 25 | 30 | 106 | 80 | 53 | 48 | 64 | 70 | 33 | 85 | 9 | 10,7 | 17,5 | 11 | 1,42 | 1013006 |
| All product data (pictures, dimensions, tables, drawings) are provided as received from the supplier; we exclude liability for their accuracy or completeness. | |||||||||||||||||
Selection and Installation Notes
The BF support unit has a compact housing intended to simplify installation where available machine space is limited. The bearings are greased and adjusted in the housing, reducing the need for additional bearing alignment during installation.
- Model selection: Choose BF10, BF12, BF15, BF17, BF20 or BF25 according to the machined shaft-end dimensions shown above.
- Machine integration: Use the dimensional drawings and preserved 3D files to verify mounting space before machining or assembly.
- Additional sizes: If you need a BF size not listed in the table or online shop, contact Vallder with the required model or dimensions for availability.
Assembly Examples
The reference images below show typical ball screw support, housing alignment and motor-side assembly arrangements. Use them together with your machine drawing and the dimensional data above when planning the installation.
Supported and fixed side arrangement
Bearing housing mounting
Motor-side mounting example
Typical assembly components