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JB40-8-125

type Connecting Thread Nominal M Connecting Thread Nominal P Main Body Material Allowable Misalignment U Stud Material Applicable cylinder bore size Applicable cylinder nominal thread Option CAD Days to Ship

Specification/Dimensions

type
- JB
Clear
Connecting Thread Nominal M(mm)
M3 ~ M8

M10 ~ M18

M20 ~ M26
Clear
Connecting Thread Nominal P(mm)
- 0.5~0.8
- 1~1.75
- 2~2.5
- 2.5 or more
Clear
Main Body Material
- Steel
  - Carbon steel
- Brass
Clear
Allowable Misalignment U(mm)
0.5

0.75

1

1.25

2

2.5

3
Clear
Stud Material
- Steel
  - Chrome molybdenum steel
  - Free-cutting steel
Clear
Applicable cylinder bore size(ø)
- 12
- 16
- 20
- 25
- 40
- 63
- 80
- 100
- 140
- 160
Clear
Applicable cylinder nominal thread
- M3 × 0.5
- M4 × 0.7
- M5 × 0.8
- M6 × 1
- M8 × 1.25
- M10 × 1.5
- M16 × 2
- M20 × 2.5
- M22 × 2.5
- M24 × 3
Clear
Option
- High-temperature specifications (-5 to +100°C)
- None
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

3 Day(s) or Less

55 Day(s) or Less
Clear

Specify Alterations

Floating Joint, For Compact Cylinders JB Series (JB40-8-125)

FLOATING JOINT

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Brand :

SMC

Qty :
Days to Ship :

---
Total Price :

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(i)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
Compatible bore size	Model	Nominal diameter	Pitch	A	B	C	D	E	F	G	H	Center of sphere R
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)
Compatible bore size	Model	Maximum thread depth P	Allowable eccentricity U	Compression	Tension	Weight (kg)
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.

: 30; 60; 90

Part Number
JB40-8-125

Part Number	Price	Name	Minimum Order Qty.	Volume Discount	Days to Ship	Connecting Thread Nominal M (mm)	Connecting Thread Nominal P (mm)	Main Body Material	Allowable Misalignment U (mm)	Stud Material	Applicable cylinder bore size (ø)	Applicable cylinder nominal thread	Option
	฿ 1,243.55	FLOATING JOINT	1 Piece(s)		Same day	M3 ~ M8	1~1.75	[Steel] Carbon steel	0.75	[Steel] Chrome molybdenum steel	40	M8 × 1.25	None

Basic Information

Type	Floating Joints	Connection Type, Cylinder Side	Threaded	Connection Type, Work Piece Side	Tapped
Applicable Cylinder	Air Cylinder	Allowable Angular Deviation(deg)	±5	Metallic Head	No

Please check the type/dimensions/specifications of the part JB40-8-125 in the Floating Joint, For Compact Cylinders JB Series series.

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products with similar specification

Part Number
JB12-3-050-X11
JB140-22-250
JB140-22-250-X11
JB40-8-125-X11
JB63-10-150
JB63-10-150-X11

Price	Minimum Order Qty	Days to Ship	Connecting Thread Nominal M (mm)	Connecting Thread Nominal P (mm)	Main Body Material	Allowable Misalignment U (mm)	Stud Material	Applicable cylinder bore size (ø)	Applicable cylinder nominal thread	Option
฿ 461.55	1 Piece(s)	55 Day(s)	M3 ~ M8	0.5~0.8	Brass	0.5	[Steel] Free-cutting steel	12	M3 × 0.5	High-temperature specifications (-5 to +100°C)
฿ 8,778.80	1 Piece(s)	55 Day(s)	M20 ~ M26	2~2.5	[Steel] Carbon steel	2.5	[Steel] Chrome molybdenum steel	140	M22 × 2.5	None
฿ 9,276.05	1 Piece(s)	55 Day(s)	M20 ~ M26	2~2.5	[Steel] Carbon steel	2.5	[Steel] Chrome molybdenum steel	140	M22 × 2.5	High-temperature specifications (-5 to +100°C)
฿ 1,344.70	1 Piece(s)	55 Day(s)	M3 ~ M8	1~1.75	[Steel] Carbon steel	0.75	[Steel] Chrome molybdenum steel	40	M8 × 1.25	High-temperature specifications (-5 to +100°C)
฿ 1,674.50	1 Piece(s)	Same day	M10 ~ M18	1~1.75	[Steel] Carbon steel	1	[Steel] Chrome molybdenum steel	63	M10 × 1.5	None
฿ 1,938.85	1 Piece(s)	55 Day(s)	M10 ~ M18	1~1.75	[Steel] Carbon steel	1	[Steel] Chrome molybdenum steel	63	M10 × 1.5	High-temperature specifications (-5 to +100°C)