Oil Free Bushing
Product name | Oil Free Bushings I.D. F7 - Copper Alloy |
Part number | MPBZ12-12 |
Features | The most standard type in the Copper Alloy series. |
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria
Suitable for Sliding Bearing of shaft loading / unloading.
Back to page top
Available sizes
■Oil Free Bushings I.D. F7 - Copper Alloy
Material: High Tensile Brass Alloy, Solid Lubricant Embedded
I.D. | O.D. | Length | Rotation Stopper Screw |
φ5 | φ9 | 8 | 9 | 10 | 12 | 15 | | | | | | | | M4×8 |
φ6 | φ10 | 8 | 9 | 10 | 12 | 15 | 16 | 19 | 20 | | | | |
φ8 | φ12 | 8 | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | | | |
φ10 | φ14 | 8 | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | 30 | | |
φ12 | φ18 | 8 | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | 30 | 35 | |
φ13 | φ19 | | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | 30 | 35 | |
φ15 | φ21 | | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | 30 | 35 | 40 |
φ16 | φ22 | | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | 30 | 35 | 40 |
φ18 | φ24 | | 9 | 10 | 12 | 15 | 16 | 19 | 20 | 25 | 30 | 35 | 40 | M5×8 |
Back to page top
Accuracy Info.
■Accuracy of Oil Free Bushing Copper Alloy Straight, Standard I.D. F7 O.D. m6
I.D. Tolerance: F7
Recommended Mating Shaft
d8: General Use (High-Load)
f8: High Precision Use
e7: General Use (Light Load)
g6: High Precision Use (Intermittent Operation)
Back to page top
Performance info.
■Load information of oil free bushing copper alloy type
| Regular | Non-lubricated |
Maximum Allowable Load | 29N/mm2 |
Maximum Allowable Velocity | 60m/min | 30m/min |
Maximum Allowable PV Value | 1990kgf/cm2・m/min | 1010kgf/cm2・m/min |
Back to page top
IDEA NOTE The clamping height can be easily changed by manual operation.
The tapered portion of the horizontal pin that is arranged perpendicular to the vertical shaft is fit in any one of the grooves at different heights provided on the vertical shaft, so as to securely fix the shaft.
IDEA NOTE A spring guide is arranged beside the spring.
To prevent the spring force from directly exerting on the oil free bushing, a spring guide is installed.