Floating Joint, For Compact Cylinders JB Series

Caution
- See catalog for specification details.
- Product images may be representative images. Refer to the catalog for details.
Product Description
This is a floating joint made by SMC.
[Features]
· A floating joint can absorb any "off-centering" or "loss of parallel accuracy" present between the cylinder and the driven body.
· Centering is unnecessary.
· A high level of machining accuracy is unnecessary.
· Dramatically reduces installation time.
· Compact and suitable for high tensile stresses.
· Long service life (with dust-proof cover).
· Rotating angle: ±5°
Floating Joint JB Series Specifications

Floating Joint JB Series external appearance

Operating range
Diagram / Parts List

Diameter 12 mm, 16 mm
Component Parts
| Number | Description | Material | Note |
|---|---|---|---|
| 1 | Stud | Free-cutting steel | Electroless nickel plating |
| 2 | Case | Brass | Electroless nickel plating |
| 3 | Ring | Stainless steel | - |
| 4 | Socket | Brass | Electroless nickel plating |
| 5 | Dust cover | Synthetic rubber | - |
*See the manufacturer's catalog regarding replacement parts.

Diameter 20 to 160 mm
Component Parts
| Number | Description | Material | Note |
|---|---|---|---|
| 1 | Stud | Chrome molybdenum steel | Dyed black |
| 2 | Case | Carbon steel | Black zinc chromated |
| 3 | Ring | Chrome molybdenum steel | - |
| 4 | Cap | Carbon steel | Black zinc chromated |
| 5 | Dust cover | Synthetic rubber | - |
| 6 | Set screw | Carbon steel | Zinc chromate |
Dimensions: Basic Type

JB20/16 dimensional drawing

JB20/160 dimensional drawing
(Unit: mm)
| Compatible bore size | Model | M | A | B | C | D | E | F | G | H | Center of sphere R | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal diameter | Pitch | |||||||||||
| 12 | JB12-3-050 | 3 | 0.5 | 24.5 | 3 | 4 | 16 | 2 | 6 | 5 | 10 | 13 |
| 16 | JB16-4-070 | 4 | 0.7 | 26.5 | 4.5 | 6 | 16 | 2 | 6 | 5 | 10 | 15 |
| 20 | JB20-5-080 | 5 | 0.8 | 33 | 5 | 6.5 | 21 | 4.5 | 7 | 7 | 13 | 19.5 |
| 25 | JB25-6-100 | 6 | 1 | 38 | 6 | 8 | 24 | 5 | 8 | 8 | 17 | 22.5 |
| 40 | JB40-8-125 | 8 | 1.25 | 51 | 8.5 | 11 | 31 | 6 | 11 | 11 | 22 | 29 |
| 63 | JB63-10-150 | 10 | 1.5 | 62.5 | 10 | 13 | 41 | 7.5 | 14 | 13.5 | 27 | 35.5 |
| 80 | JB80-16-200 | 16 | 2 | 80.5 | 16 | 20 | 50 | 9.5 | 19 | 16 | 32 | 47.5 |
| 100 | JB100-20-250 | 20 | 2.5 | 101 | 21 | 26 | 59.5 | 11.5 | 24 | 20 | 41 | 59 |
| 140 | JB140-22-250 | 22 | 2.5 | 129 | 17 | 22 | 79 | 14 | 30 | 22 | 46 | 71.5 |
| 160 | JB160-24-300 | 24 | 3 | 149 | 20 | 26 | 96 | 16 | 36 | 24 | 55 | 83 |
| Compatible bore size | Model | Maximum thread depth P | Allowable eccentricity U | Maximum operating tension and compression force N | Weight (kg) | |
|---|---|---|---|---|---|---|
| Compression | Tension | |||||
| 12 | JB12-3-050 | 7 | 0.5 | 112 | 112 | 0.02 |
| 16 | JB16-4-070 | 7 | 0.5 | 200 | 200 | 0.02 |
| 20 | JB20-5-080 | 8 | 0.5 | 1,100 | 300 | 0.04 |
| 25 | JB25-6-100 | 9 | 0.5 | 2,500 | 500 | 0.07 |
| 40 | JB40-8-125 | 13 | 0.75 | 6,000 | 1,300 | 0.15 |
| 63 | JB63-10-150 | 15 | 1 | 11,000 | 3,100 | 0.29 |
| 80 | JB80-16-200 | 18 | 1.25 | 18,000 | 5,000 | 0.56 |
| 100 | JB100-20-250 | 24 | 2 | 28,000 | 7,900 | 1.04 |
| 140 | JB140-22-250 | 38 | 2.5 | 54,000 | 15,300 | 2.6 |
| 160 | JB160-24-300 | 42 | 3 | 71,000 | 20,000 | 4.5 |
Precautions
- *See the manufacturer's catalog for product information other than the above.
- *Product images are representative images.