Cantilever Shafts / heel selectable / external thread, internal thread / external hexagon (Part Numbers - CAD Download)

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Hex Cantilever Shaft - For Tension Idler, Screw Mount Dimensional Drawing

Standard

Stepped

[!] Please refer to Table 1 to specify dimensions Y and F.

Standard		Stepped		[M] Material	[S] Surface treatment
Thread Length Fixed	Thread Length Configurable	Thread Length Fixed	Thread Length Configurable	[M] Material	[S] Surface treatment
FXKB	FXNKB	FXLB	FXNLB	EN 1.1191 Equiv.	Black Oxide
PFXKB	PFXNKB	PFXLB	PFXNLB	EN 1.1191 Equiv.	Electroless Nickel Plating
SFXKB	SFXNKB	SFXLB	SFXNLB	EN 1.4301 Equiv.	—

Specification Table

Part Number	—	Y	—	F	—	G	—	N	—	MA
FXKB20A FXNKB12 SF−SFXKB10	— — —	20 15 20	— — —	F12 F21 F12	— — —	G8 G5 G8	—	N14	— — —	MA10 MA6 MA4

D Tolerance (g6)
6	−0.004 −0.012
8·10	−0.005 −0.014
12 to 18	−0.006 −0.017
20 to 30	−0.007 −0.020

Part Number			D	1 mm Increments			N		MA (Coarse) Selection									P	M (Coarse)	V (Stepped Type only)	B	(C)
Type		No.		Y	F	G	Thread Length Fixed	Thread Length Configurable
Standard Thread Length Fixed FXKB PFXKB SFXKB Stepped Thread Length Fixed FXLB PFXLB SFXLB	Configurable FXNKB PFXNKB SFXNKB Configurable FXNLB PFXNLB SFXNLB	6	6	5 to 60	5 to 100	5 to 10	9	6 to 12	3									6	M 6	8	10	11.5
		8	8				12	8 to 16		4								8	M 8	10	12	13.9
		10	10				15	10 to 20		4	5	6						10	M10	13	14	16.2
		12	12		10 to 120	5 to 15	18	12 to 24			5	6	8					12	M12	15	17	19.6
		13	13																	16
		15	15									6	8	10						18	19	21.9
		16	16																	19
		17	17	5 to 75		5 to 20														20	22	27.5
		18	18																	21	24	27.7
		20	20				30	20 to 40				6	8	10	12			20	M20	24	27	31.2
		20 A																16	M16
		22	22															20	M20	26	27	31.2
		22 A																16	M16
		25	25										8	10	12	16		20	M20	29	30	34.6
		25 A																16	M16
		30	30										8	10	12	16	20	20	M20	34	36	41.6
		30 A																16	M16

Table 1

MA	Y+F
M 3	Y+F ≥ 11.5
M 4	Y+F ≥ 14.0
M 5	Y+F ≥ 16.2
M 6	Y+F ≥ 18.5
M 8	Y+F ≥ 23.5
M10	Y+F ≥ 28.5
M12	Y+F ≥ 35.5
M16	Y+F ≥ 45.0
M20	Y+F ≥ 55.0

Alterations

Part Number	—	Y	—	F	—	G	—	N	—	MA	—	(YKC·SC·MTC·SET)
FXLB12	—	27	—	F15	—	G7	—			MA6	—	MTC

Alterations

Retaining Ring Set

Y Dimension Tolerance

Wrench Flats

Tapped Hole

Hex Cantilever Shaft - For Tension Idler, Screw Mount Alteration 1

Hex Cantilever Shaft - For Tension Idler, Screw Mount Alteration 2

Hex Cantilever Shaft - For Tension Idler, Screw Mount Alteration 3

Code

SET

YKC

MTC

Spec.

Retaining Ring applicable to each shaft diameter is included.
Ordering Code SET
Applicable to Retaining Ring Type.
Retaining Ring Shape
No. = 6 to 8: Retaining Ring Type E
No. 10 to 30A: Retaining Ring Type C
Retaining Ring Material

Cantilever Shafts		Retaining Ring
Material	Surface Treatment	Material
EN 1.1191 Equiv.	Black Oxide	Spring Steel
EN 1.1191 Equiv.	Electroless Nickel Plating	EN 1.4301 Equiv. (CSP)
EN 1.4301 Equiv.	—	EN 1.4301 Equiv. (CSP)

Changes Y dimension tolerance to ±0.05.
Changes Y dimension tolerance to ± 0.05.
[!] Applicable to all types
Ordering Code YKC

An alteration of wrench flats can be made for a slot hole guide.

[!] Applicable to all types
Ordering Code SC

[!] P (wrench flats) tolerance is
+0.2/0.

An alteration of a tapped hole made for shaft push/pull. Allows combined use of AJST, AJKC
. (Configurable dimension Y is limited.
Refer to the table below.)
Ordering Code MTC

D	X	M₁	Ymin.
D	X	M₁	Standard	Stepped
6	10	M 4	15	18
8		M 5	15	18
10		M 6	16	19
12 to 18		M 8	18	21
20 to 25 A	15	M10	25	28
30·30 A	15	M12	27	30

Hex Cantilever Shaft - For Tension Idler, Screw Mount Alteration 4

[!] When combined with SC, add
3 mm to dimension Y.

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Data to be displayed: 30; 45; 60

Part Number
SFXNKB20A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNKB22-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNKB22A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNKB25-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16]
SFXNKB25A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16]
SFXNKB30-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16,20]
SFXNKB30A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16,20]
SFXNLB6-[5-60/1]-F[5-100/1]-G[5-10/1]-N[6-12/1]-MA3
SFXNLB8-[5-60/1]-F[5-100/1]-G[5-10/1]-N[8-16/1]-MA4
SFXNLB10-[5-60/1]-F[5-100/1]-G[5-10/1]-N[10-20/1]-MA[4,5,6]
SFXNLB12-[5-60/1]-F[10-150/1]-G[5-15/1]-N[12-24/1]-MA[5,6,8]
SFXNLB13-[5-60/1]-F[10-150/1]-G[5-15/1]-N[12-24/1]-MA[5,6,8]
SFXNLB15-[5-60/1]-F[10-150/1]-G[5-15/1]-N[12-24/1]-MA[6,8,10]
SFXNLB16-[5-60/1]-F[10-150/1]-G[5-15/1]-N[12-24/1]-MA[6,8,10]
SFXNLB17-[5-75/1]-F[10-150/1]-G[5-20/1]-N[12-24/1]-MA[6,8,10]
SFXNLB18-[5-75/1]-F[10-150/1]-G[5-20/1]-N[12-24/1]-MA[6,8,10]
SFXNLB20-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNLB20A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNLB22-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNLB22A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[6,8,10,12]
SFXNLB25-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16]
SFXNLB25A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16]
SFXNLB30-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16,20]
SFXNLB30A-[5-75/1]-F[10-150/1]-G[5-20/1]-N[20-40/1]-MA[8,10,12,16,20]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Shoulder Shape	Shaft Diameter (mm)	Material	Surface Treatment	Material	Thread Length Specifying Method	M (Coarse)	Pin Shape	Thread Length N (mm)	F (mm)	G (mm)	Thread Dia. Selection [MA]	Thread Length [N] (mm)	Y (mm)
-	1	3 Days	10	Hex Type	20	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Standard Type	24	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	Hex Type	22	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Standard Type	30	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	Hex Type	22	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Standard Type	24	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	Hex Type	25	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Standard Type	30	10 ～ 150	5 ～ 20	8 ～ 16	20 ～ 40	5 ～ 75
-	1	3 Days	10	Hex Type	25	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Standard Type	24	10 ～ 150	5 ～ 20	8 ～ 16	20 ～ 40	5 ～ 75
-	1	3 Days	10	Hex Type	30	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Standard Type	30	10 ～ 150	5 ～ 20	8 ～ 20	20 ～ 40	5 ～ 75
-	1	3 Days	10	Hex Type	30	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Standard Type	24	10 ～ 150	5 ～ 20	8 ～ 20	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	6	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	6	Stepped Type	-	5 ～ 100	5 ～ 10	3	6 ～ 12	5 ～ 60
-	1	3 Days	10	For Tension	8	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	8	Stepped Type	-	5 ～ 100	5 ～ 10	4	8 ～ 16	5 ～ 60
-	1	3 Days	10	For Tension	10	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	10	Stepped Type	-	5 ～ 100	5 ～ 10	4 ～ 6	10 ～ 20	5 ～ 60
-	1	3 Days	10	For Tension	12	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	12	Stepped Type	-	10 ～ 150	5 ～ 15	5 ～ 8	12 ～ 24	5 ～ 60
-	1	3 Days	10	For Tension	13	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	12	Stepped Type	-	10 ～ 150	5 ～ 15	5 ～ 8	12 ～ 24	5 ～ 60
-	1	3 Days	10	For Tension	15	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	12	Stepped Type	-	10 ～ 150	5 ～ 15	6 ～ 10	12 ～ 24	5 ～ 60
-	1	3 Days	10	For Tension	16	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	12	Stepped Type	-	10 ～ 150	5 ～ 15	6 ～ 10	12 ～ 24	5 ～ 60
-	1	3 Days	10	For Tension	17	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	12	Stepped Type	-	10 ～ 150	5 ～ 20	6 ～ 10	12 ～ 24	5 ～ 75
-	1	3 Days	10	For Tension	18	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	12	Stepped Type	-	10 ～ 150	5 ～ 20	6 ～ 10	12 ～ 24	5 ～ 75
-	1	3 Days	10	For Tension	20	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Stepped Type	-	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	20	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Stepped Type	-	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	22	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Stepped Type	-	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	22	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Stepped Type	-	10 ～ 150	5 ～ 20	6 ～ 12	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	25	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Stepped Type	-	10 ～ 150	5 ～ 20	8 ～ 16	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	25	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Stepped Type	-	10 ～ 150	5 ～ 20	8 ～ 16	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	30	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	20	Stepped Type	-	10 ～ 150	5 ～ 20	8 ～ 20	20 ～ 40	5 ～ 75
-	1	3 Days	10	For Tension	30	Stainless Steel	Not Provided	EN 1.4301 Equiv.	Thread Length Configurable Type	16	Stepped Type	-	10 ～ 150	5 ～ 20	8 ～ 20	20 ～ 40	5 ～ 75

General Information - Cantilever Shafts

Cantilever bins with retaining ring groove - cantilever pin with external thread - cantilever pin with thread - cantilever pin with collar - cantilever pin with shoulder - cantilever pin with female thread - cantilever pin with flange - cantilever pin with flange and collar

Selection details of cantilever shafts/cantilever bolts

- Material: stainless steel, steel, tempered steel

- Coatings: untreated, burnished, nickel-plated

- Fastening: retaining ring, internal thread, external thread, centring collar with internal thread

- ISO tolerance: g6

- Thread: M3 to M20

- Straightness: up to 0.02 mm

- Roundness: up to 0.02 mm

- Shaft diameter: 3 to 50 mm

-Length: 3 to 150 mm

Description/Basics

They are basically used to support rotary rolling bearings. The support position can be precisely determined by its configurability. The different mounting variants offer a compact and space-saving option for many applications, e.g., to accommodate ball bearings.
Cantilever shafts with collar or shoulder are well suited to determine a support position. The collar serves as a contact surface for the bearing inner wheel. Since the collar of the cantilever shaft can be configured, individual adaptation is simple. The variant [YKC] offers the option of a particularly precise axle bolt with collar, with a length tolerance of +/- 0.05 mm. Due to this property, an additional washers can be omitted with this cantilever shaft.
The cantilever shafts are also available with double collars or double offset. These are suitable for idler pulleys with a small diameter, since the reduced additional shoulder can prevent grinding of the idler pulley.
Cantilever shafts with retaining ring groove (groove) are the most commonly used bearing bolts, because the retaining rings allows for easy assembly and disassembly. The cantilever shafts including the retaining ring can be delivered with the [SET] option. We also offer threaded cantilever shafts that can be selected with external threads or internal threads.
As a special form, our product range offers cantilever shafts with flanges. Due to the large contact surface, higher forces can be absorbed and distributed more evenly compared to conventional cantilever shafts. If you want to attach ball bearings that also have to withstand axial forces, for example, the cantilever shaft with flange offers a good solution. Due to its versatility, the cantilever shaft with flange can be used for a wide variety of design solutions.
Our product range includes various drives for assembly. From the typical hexagon to spanner flat, to additional cross holes with threads that can be used for example for a tension application for clamping devices.

The field of application of cantilever shafts in mechanical engineering is fundamentally very large. They are utilised in synchronous drives, chain transmission or in various tasks in device construction
Bearing pins can be used in combination with ball bearings or plain bearing bushings. Among other things, you can select roller idlers (with rolling bearings), idler pulleys or timing pulleys. As an alternative for limited installation space, we offer cam rollers, which come assembled and ready to install consisting of cantilever shafts and rolling bearings.
Bearing pins are also often used in conjunction with links to ensure different movement sequences.
For high loads, we offer the cantilever shafts made of heat-treated steel, which are produced to be wear-resistant and durable with a hardness of up to 40HRC.

Our product range also offers suitable screws and nuts for fastening cantilever shafts.

Application Examples - Cantilever Shafts

Application example - cantilever pin with idler pulley - cantilever pin with female thread - shaft for idler pulley - bolt for idler pulley - cantilever bolt with thread

Application example: deflection roller
(1) Cantilever shaft, (2) Idler pulley, (3) Spacer washer, (4) Mounting angle, (5) Screw, (6) Mounting plate

Application example - cantilever pin with chain idler - cantilever pin with centring collar - cantilever pin double offset - cantilever pin with double collar - cantilever pin with female thread

Application example: chain idlers
(1) Cantilever shafts, (2) Chain idlers, (3) Spacer washer, (4) Screw

Application example - cantilever pin with clamping device - cantilever pin for clamping device - cantilever pin with cross hole and thread - cantilever pin with male thread - cantilever pin with thread - roller tensioner with adjusting screw

Application example: idler pulley
(1) Cantilever shaft, (2) Locknut, (3) Washer, (4) Idler pulley, (5) Threaded stopper block, (6) Adjusting screw

Application example - cantilever pin with plain bearing bushing - cantilever pin with retaining ring - cantilever pin with male thread - cantilever pin with articulated arm - cantilever pin with thrust washer - cantilever pin with thread

Application example: link with plain bearing bushing
(1) Cantilever shaft, (2) Retaining ring, (3) Links, (4) Plain bearing bushing, (5) Thrust washer

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

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Basic information

Shaft Retaining Method	Threaded (Lock Nut)	Bearing Retaining Method	Threaded (Lock Nut)	Hardness	Hardness Not Spec-designed

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Basic Attributes

Shoulder Shape
- Hex Type
- For Tension
Clear
Shaft Diameter(mm)
6

8

10

12

13

15

16

17

18

20

22

25

30
Clear
Material
- Steel
- Stainless Steel
Clear
Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
Clear
Material
- EN 1.1191 Equiv.
- EN 1.4301 Equiv.
Clear
Thread Length Specifying Method
- Thread Length Configurable Type
- Thread Length Fixed Type
Clear
M (Coarse)
- 6
- 8
- 10
- 12
- 16
- 20
Clear
Pin Shape
- Standard Type
- Stepped Type
Clear
Thread Length N(mm)
9

12

15

18

24

30
Clear
F(mm)
[5-150/1mm Unit(s)]
Clear
G(mm)
[5-20/1mm Unit(s)]
Clear
Thread Dia. Selection [MA]
3

4

5

6

8

10

12

16

20
Clear
Thread Length [N](mm)
[6-40/1mm Unit(s)]
Clear
Y(mm)
[5-75/1mm Unit(s)]
Clear
Type
- FXKB
- FXLB
- FXNKB
- FXNLB
- PFXKB
- PFXLB
- PFXNKB
- PFXNLB
- SFXKB
- SFXLB
- SFXNKB
- SFXNLB
Clear
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- 2D
- 3D
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3 Days or Less

4 Days or Less
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Optional Attributes

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

Frequently Asked Questions (FAQ)

Question:
Do you have long axle bolts?: Answer:
We offer axle bolts in a configurable length of approx. 150 mm. If this length is not sufficient, a rotary axle may serve as an alternative depending on the design.
Question:
Do you have hollow axle bolts?: Answer:
Currently, we do not offer hollow axle bolts in our product line. However, MISUMI offers hollow rotary axles. These can be configured in a similar way and represent a possible alternative depending on the application.
Question:
What is the roundness of the axle bolts?: Answer:
Depending on the cantilever shaft, the roundness is up to 0.02 mm. It is recommended to refer to the values specified in the corresponding technical drawing and the specifications of the axle bolt.
Question:
How straight are axle bolts aligned?: Answer:
Our axle bolts are manufactured to a precise straightness of approx. 0.02 mm. The assembly side of the MISUMI axle bolts is finer to allow for a straight fit and exact alignment. Refer to technical drawing or specifications for details.
Question:
Are axle bolts with flange suitable for tension rollers?: Answer:
Flange cantilever shafts can also be used in idler pulley applications. If a cantilever shaft with collar can be used, an additional spacer sleeve can be omitted. The collar of the flange cantilever shaft is configurable and can be individually adjusted to the bearing position.
Question:
Do you have stainless axle bolts?: Answer:
MISUMI offers stainless steel cantilever shafts. In addition, our steel cantilever shafts are available with an optional surface treatment to protect them from corrosion and environmental conditions. Our cantilever shafts are available in both burnished and nickel-plated options.
Question:
Do you have axle bolts made of alloy quenched and tempered (Q & T) steel?: Answer:
In the MISUMI online shop, you will find a large number of cantilever shafts made of tempered steel. These can be additionally protected against corrosion with burnished or nickel-plated finishes.