Linear ball bushing with flange
Caution
- Delivery times for some of our products may be delayed as national government authorities have imposed limit of capacity at our production sites.
Product Description
Capable of a combination of rotary motion and finite linear motion (strokes shown in the specification table). Lengths for bushings with flanges attached are for the Single Type specification.
Flanged linear ball bushings for rotary and finite linear motion
This flanged ball bushing allows combined motion: rotation plus finite linear stroke. Unlike a recirculating linear bushing, the balls do not circulate, so the stroke is limited (see table). Choose the flange shape (round, square or two-flat) and Single or Double type. Lengths of flanged types are based on the Single type.
Types and components
Single type: round flange, square flange, two-flat flange. Double type: dr = 6–13, dr = 16, 20
| Type | Type | Outer cylinder | Ball | Retainer | Ambient temperature | |||
|---|---|---|---|---|---|---|---|---|
| Round flange | Square flange | Two-flat flange | Material | Hardness | Material | Material | ||
| Single | LBHR | LBHS | LBHC | SUJ2 equivalent | 58HRC– | SUJ2 equivalent | A5052S | -20–110°C |
| Double | LBHRW | LBHSW | LBHCW | |||||
- *Retaining ring
Material: SUS301
Part numbers and dimensions
Ordering example
| Type |
|---|
| LBHR10 |
| dr | Max. stroke | Number of ball rows | ℓ1 | D | L | H | T | d | d1 | t | P.C.D. | W | F | A | Eccentricity (mm) (max.) *1 | Perpendicularity *2 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal | Tolerance | Single | Double | Single | Double | Single | Double | Nominal | Tolerance | Nominal | Tolerance | |||||||||||
| 6 | 0 -0.009 | 15 | 7 | 3 | 6 | 8.3 | 12.3 | 12 | 0 | 19 | ±0.3 | 28 | 5 | 3.5 | 6 | 3.1 | 20 | 22 | - | 20 | 0.012 | 0.012 |
| 8 | 24 | 8 | 8.8 | 16.8 | 15 | -0.013 | 24 | 32 | 24 | 25 | - | 24 | ||||||||||
| 10 | 30 | 8 | 10.8 | 21.8 | 19 | 29 | 40 | 6 | 4.5 | 7.5 | 4.1 | 29 | 30 | - | 29 | |||||||
| 12 | 32 | 8 | 10.4 | 22.4 | 21 | 0 | 30 | 42 | 32 | 32 | - | 32 | ||||||||||
| 13 | 34 | 10 | 11.4 | 23.4 | 23 | -0.016 | 32 | 43 | 33 | 34 | - | 33 | ||||||||||
| 16 | 40 | 16 | 12.8 | 24.8 | 28 | 37 | 48 | 38 | 37 | 22 | 31 | |||||||||||
| 20 | 0 | 46 | 28 | 14.8 | 23.8 | 32 | 0 | 42 | 54 | 8 | 5.5 | 9 | 5.1 | 43 | 42 | 24 | 36 | 0.015 | 0.015 | |||
| -0.010 | -0.019 | |||||||||||||||||||||
*1: Max. offset between the center of O.D. D and the center of I.D. dr.
- *2: Perpendicularity between part D and the flange mounting face.
Supplied coated with rust-preventive oil.
| dr | Basic load rating | Static allowable moment | Mass (g) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C (dynamic) N | Co (static) N | (N·m) | Single | Double | ||||||||
| Single | Double | Single | Double | Single | Double | Round | Square | Two-flat | Round | Square | Two-flat | |
| 6 | 210 | 333 | 164 | 328 | - | 2.18 | 23 | 17 | 20 | 24 | 18 | 21 |
| 8 | 323 | 512 | 278 | 556 | - | 4.31 | 41 | 33 | 37 | 43 | 35 | 39 |
| 10 | 499 | 793 | 408 | 815 | - | 7.24 | 71 | 51 | 63 | 74 | 54 | 66 |
| 12 | 722 | 1146 | 579 | 1157 | - | 10.9 | 67 | 48 | 59 | 71 | 52 | 63 |
| 13 | 773 | 1226 | 634 | 1268 | - | 11.6 | 87 | 71 | 80 | 91 | 75 | 84 |
| 16 | 1330 | 2112 | 1029 | 2058 | - | 19.7 | 119 | 103 | 111 | 126 | 110 | 118 |
| 20 | 1609 | 2554 | 1517 | 3035 | - | 26.8 | 176 | 141 | 163 | 184 | 149 | 171 |
Linear ball bushing features and precautions
Features
- A rolling bearing using balls, allowing both linear and rotary motion.
- Balls and raceways are in point contact, allowing low-friction rolling motion.
- Interchangeable with linear bushings, with even load distribution.
- Shafts with O.D. tolerance g6 can be used with linear ball bushings.
For use with preload, shafts with O.D. tolerance h5 are recommended.
Precautions
- Unlike linear bushings, the balls do not recirculate, so the stroke is limited.