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Back to the Category Locating Pins / Positioning Pins / Centring Pins

Technical Drawing - Locating Pins / Positioning Pins / Centring Pins

Large Head/Round Tapered/Standard:Related Image

Available dimensions and tolerances can be found under the tab More Information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Locating Pins / Positioning Pins / Centring Pins

Material No.	Material	Surface Treatment	Hardness	Type	D Tolerance and Shape Code
	EN 1.2510 Equiv.	-	Treated Hardness: 60 ~ 63HRC	JPRB	B (Press Fit, m6) PB (Press Fit, p6) TB (Tapped) NB (Threaded)
	EN 1.2510 Equiv.	Hard Chrome Plating Plating Thickness: 3µm or more	Treated Hardness: 50 ~ 55HRC Plating Hardness: 750HV ~	GJPRB
	EN 1.4301 Equiv.	-	-	SJPRB
	EN 1.4125 Equiv.	-	Treated Hardness: 50 ~ 55HRC	CJPRB
	EN 1.2510 Equiv.	Buffing	Treated Hardness: 60 ~ 63HRC	MJPRB

Further specifications can be found under the tab More Information.

Composition of a Product Code - Locating Pins / Positioning Pins / Centring Pins

Part Number			-	P

Type	Shape	D
JPRB	B	10	-	12
MJPRB	TB	12	-	16

Alterations - Locating Pins / Positioning Pins / Centring Pins

General Information - Locating Pins / Positioning Pins / Centring Pins

Selection details of receiving pins/locating pins/ centering pins

- Material: steel, stainless steel, aluminum, plastic
- Coatings: burnished, nickel-plated, hard chrome-plated, polished, hard chrome-plated and polished, clear anodized
- Heat treatment: carburized, quenched
- ISO tolerances mounting side: m6, n6, p6, g6, h6, h7
- Head diameter: 1 to 30 mm
- Basic form: wide head, narrow head, cylindrical, with collar, with hole, with flange, double guide
- Assembly side form: fit, external thread, internal thread, circumferential groove, notch, flat surface
- Head shape: round, diamond-shaped (sword shape), triangular
- Tip shape: fastened, rounded, conical, round, spherical, flattened, ball attachment, projectile-shaped

Description/Basics

centering pins are used to fix the position and limit the degrees of freedom of the objects to be positioned. The precisely manufactured centering pins enable highly precise positioning of the assembly parts. centering pins can position objects as side stopper or center them by insertion. This allows positioning them in the X, Y and Z axes.

Application example: centering pin as work piece stopper - (1) work piece, (2) threaded receiving pin

A straight centering pin is only sufficient for the X and Y axis to determine the position of an assembly part. In order to additionally adjust the position in the Z axis, a centering pin with a collar can be used. This combination can reduce the variety of components, since there is no need for an additional support pin.

Application example for a centering pin with collar

In most cases a plug-in connection uses a centering pin to protect the work piece or the application during multiple joining and positioning. The centering bushings protect the component from unwanted wear, especially if the objects to be placed are made of a soft material. Therefore, positioning bushings make an application more maintenance-friendly. Wear should always be considered when planning an application. The material and the surface coating of centering pins should be selected according to the application.

Positioning bushing - receiving bushing – centering bushing

Application example for a centering bushing - (1) centering bushing

Function

If objects cannot be placed straight, but slightly inclined on centering pins, a round or chamfered head shape can be used. This helps ensure that the objects do not jam with the centering pins and the process runs smoothly. A round or chamfered head shape is also advisable for applications that are highly repetitive (cycles).

Receiving pin with collar - threaded receiving pin - receiving pin with collar - receiving pin with thread

Application example for an inclined infeed - (1) centering pin rounded head, (2) workpiece

For the highest possible positioning accuracy centering pins should be used in pairs as much as possible. The respective distance between the centering pins also influences the position accuracy. If it is chosen large, it can improve the accuracy of the object’s positioning. If there is a large distance between the centering pins (B), one of the locating pins should have a diamond-shaped head (sword pin), since a sword pin almost prevents tilting. The use of a third centering pin in an L-shaped (triangular) arrangement may improve the positioning accuracy even further. In order to ensure that the centering pins are not interchanged, centering pins with different diameters should be selected.

Application example for a sword pin - (1) sword pin (diamond-shaped), (2) centering pin (round)

MISUMI offers various mounting variants for centering pins in order to keep applications maintenance-friendly. Centering pins with internal threads can be interchangeably fastened with a screw through the mounting plate from underneath. If access to the underside is difficult, a centering pin or sword pin with external thread can be used. The assembly and disassembly of the centering pins can thus be easily designed by means of the various mounting versions.

Threaded locating pin - external threaded locating pin - internal threaded locating pin

Centering pin with external thread/ centering pin with internal thread

Areas of Application

centering pins are used in work piece carriers as well as the highly accurate positioning of components in test benches. centering pins enable highly precise positioning of objects with all degrees of freedom, thanks to the versatile and highly configurable shapes. The wide variety of MISUMI centering pins offers a suitable shape for every application. Centering pins are used for thin sheets as well as for heavy and complex components. This means that centering pins can be used across almost all industries of plant engineering and mechanical engineering. In many applications, centering pins are indispensable, as they enable a highly accurate positioning of the components.

Materials

The MISUMI centering pins are available in the following materials: steel, stainless steel, aluminum, plastic . Pins made of steel and aluminum are available in both hardened and coated versions. With a high number of cycles, the use of a hardened material is recommended, as these have a higher wear resistance.

Corrosion resistance

The following salt water spray test was performed on the raw material (see table) of the centering pins and mounting pins. Corrosion resistance was determined based on the test times of 48 and 96 hours.

	EN 1.4305 equivalent	EN 1.4301 equivalent	EN 1.4125 equivalent	EN 1.2510 equivalent
Before the test
48h
96h

centering pin salt water spray test (according to JIS Z2371)

Shear load in comparison

During a test procedure, the shear load of a centering pin was tested with different steels. The tested centering pin was based on JPBB8-10 and was tested for a shear load in a device (see figure). The following table lists the test results for comparison purposes.

Receiving pin – centering pin – centering bolt

Application example for the shear load of receiving bolts

Materials	Shear load	Hardness
EN 1.2510 equivalent	65 kN	60 ~ 63 HRC
EN 1.4301 equivalent	27 kN	10 ~ 20 HRC
EN 1.4125 equivalent	56 kN	50 ~ 55 HRC

Comparison table for shear loads on receiving pins, reference values

Coatings

MISUMI locating pins are available in burnished, hard chrome-plated or anodized to protect them from corrosion. Locating pins that have to withstand many cycles can be hard chrome-plated. The hard chrome plating provides a high surface hardness and provides the locating pin with high wear resistance. The selectable polished surface also ensures good surface roughness of the cylinder pins and helps to achieve good sliding properties. Aluminum locating pins are translucent anodized to protect them from corrosion and wear.

Dimensions

Locating pin with wide head

two-stage locating pin - stepped locating pin - double locating pin

Locating pin, two-stage

Locating pin with narrow head

Locating pin with collar

Cylindrical locating pin

Locating pin with fastening hole

Flanged locating pin

Locating pin - locating pin with flange - locating pin with cone

Conical flanged locating pin

Instructions for Use / Installation Information - Locating Pins / Positioning Pins / Centring Pins

Maintenance

To facilitate maintenance for the centering pins, V-shaped wear grooves can be applied to the centering pin. The 0.2 mm deep grooves serve as a wear indicator of the usable surface. This makes the visual wear on the centering pin comprehensible and makes it easier to maintain the accuracy of the device. The wear grooves of the centering pins are only available with hardened and round centering pins.

centering pin – centering pin - sword pin - sword pins – centering pin - mounting pin - cylinder pin with internal thread - cylinder pin with internal thread

Example of a centering pin with wear groove (red)

Application Examples - Locating Pins / Positioning Pins / Centring Pins

Locating bolt - locating pin - locating bushing with collar

centering pin/ centering bushing with collar - (1) centering pin, (2) centering bushing

Locating bolt - locating pin - locating bushing

centering pin/ centering bushing - (1) centering pin, (2) centering bushing, (3) mounting plate

Locating bolt - locating pin – centering pin

Workpiece carrier with centering pin - (1) circuit board/printed circuit board, (2) centering pin

Locating bolt - locating pin – centering pin - mounting pin

Workpiece carrier with centering pin and positioning pin - (1) centering pin, (2) positioning pin

Positioning pin with cone - locating bolt with cone - locating pin with cone – centering bolt two-stage locating pin two-stage - locating bolt two-stage

Two-stage centering pin with cone - (1) centering pin, (2) workpieces

Two-stage centering pin with cone and internal thread - (1) centering pin, (2) workpiece

Supplementary Article

Positioning pin/spacer bolt

Locating pin - DIN 6321 - DIN6321 - support pins - receiving pins

Centering pins for fixtures

centering pin - locating pin - locating bolt - receiving pin - receiving bolt

Centering bushings/test bushings

Clamping technology

Push-Down Clamp

Spannvorrichtung - Haltevorrichtung - Federspanner

Industrial Applications

3D printer industry

Zentrierstift - Zentrierstifte - Schwertstift - Schwertstifte - Zentrierbolzen - Aufnahmebolzen - Zylinderstifte mit Innengewinde - Zylinderstift mit Innengewinde

Automotive industry

Pharmaindustrie

Packaging industry

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Data to be displayed: 30; 45; 60

Part Number
SJPRBPB13-[15,16]
SJPRBPB16-[20,25]
SJPRBPB20-[25,30]
SJPRBTB6-[8,10]
SJPRBTB6T-[8,10]
SJPRBTB8-[10,12,13]
SJPRBTB8T-[10,12,13]
SJPRBTB10-[12,13,15]
SJPRBTB12-[13,15,16]
SJPRBTB13-[15,16]
SJPRBTB16-[20,25]
SJPRBTB20-[25,30]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Type (Mounting Side)	Material	Surface Treatment	Heat Treatment	[D] Diameter (Mounting Side) (mm)	ISO Tolerance (Mounting Side)	[P] Diameter (Head) (mm)	[M] Diameter (Screw) (mm)
-	1	6 Days	10	Straight (Press-Fit)	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	13	p6	15 ～ 16	-
-	1	6 Days	10	Straight (Press-Fit)	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	16	p6	20 ～ 25	-
-	1	6 Days	10	Straight (Press-Fit)	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	20	p6	25 ～ 30	-
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	6	g6	8 ～ 10	3
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	6T	g6	8 ～ 10	2.6
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	8	g6	10 ～ 13	5
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	8T	g6	10 ～ 13	4
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	10	g6	12 ～ 15	5
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	12	g6	13 ～ 16	5
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	13	g6	15 ～ 16	8
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	16	g6	20 ～ 25	8
-	1	6 Days	10	Internal Thread	[Stainless Steel] EN 1.4301 Equiv.	No Treatment	No Treatment	20	g6	25 ～ 30	8

Back to the Category Locating Pins / Positioning Pins / Centring Pins

Technical Drawing - Locating Pins / Positioning Pins / Centring Pins

Specification Tables - Locating Pins / Positioning Pins / Centring Pins

■Press Fit

Part Number					P Selection													L	B	C	E	ℓ
Type	Shape Code	D	d dim. Tolerance
Type	Shape Code	D	m6	p6
JPRB GJPRB SJPRB CJPRB (Buff Finished) MJPRB Applicable when D≥5.	B (m6) PB (p6)	2	+0.008 +0.002	+0.012 +0.006	3	4												4	3	0.5	3	0
		3	+0.008 +0.002	+0.012 +0.006		4	5	6										5	5	0.5	3	1
		4	+0.012 +0.004	+0.020 +0.012			5	6										5	6	1	4
		5						6	8									10	6		4
		6							8	10								10	8		5
		8	+0.015 +0.006	+0.024 +0.015						10	12	13						15	8	1.5
		10	+0.015 +0.006	+0.024 +0.015							12	13	15						10	2
		12	+0.018 +0.007	+0.029 +0.018								13	15	16							6
		13											15	16				22			6	2
		16													20	25		22		3	7
		20	+0.021 +0.008	+0.035 +0.022												25	30	30	15	3	7

■Tapped

Part Number				P Selection									L	B	E	M (Coarse)	* Tightening Torque N•cm	ℓ
Type	Shape Code	D	D dim. Tolerance g6	P Selection									L	B	E	M (Coarse)	* Tightening Torque N•cm	ℓ
JPRB GJPRB SJPRB CJPRB (Buff Finished) MJPRB	TB	6	-0.016	8	10								10	8	5	M3	147	5
		6T	-0.016	8	10								10			M2.6	-	4
		8	-0.019		10	12	13						15			M5	676	8
		8T			10	12	13									M4	333	6
		10				12	13	15						10		M5	676	8
		12	-0.023				13	15	16						6	M5	676	8
		13						15	16				22		6	M8	2803	12
		16								20	25		22		7
		20	-0.027								25	30	30	15	7

Pins of D dimension with T have one size smaller thread diameter and larger wall thickness. (Actual D dimension is the number without "T".)
* Note the strength of under-head portion.>>P.1566 Please confirm pilot hole depth on >> P.1566. Holes may go through.
Tightening torque (reference) will be within Strength Class of Tightening Torque on Technical Data >> P. 2297 (10.9). Not applicable when using locking materials or lock washers.

■Threaded

Part Number				P Selection												L	B	E	M (Coarse)	*Tightening Torque N•cm
Type	Shape Code	D	D dim. Tolerance g6	P Selection												L	B	E	M (Coarse)	*Tightening Torque N•cm
JPRB GJPRB SJPRB CJPRB (Buff Finished) MJPRB Applicable when D≥5.	NB	3	-0.01	4	5	6										5	5	3	M3	147
		4	-0.016		5	6										5	6	4	M4	333
		5				6	8									10	6	4	M5	676
		6					8	10								10	8	5	M6	1156
		8	-0.019					10	12	13						15	8		M8	2803
		10	-0.019						12	13	15						10		M10	5557
		12	-0.023							13	15	16						6	M12	9702
		16	-0.023										20	25		22		7	M16	24108
		20	-0.027											25	30	30	15	7	M20	46942

*Tightening torque (reference) will be within Strength Class of Tightening Torque on Technical Data >> P. 2297 (10.9). Not applicable when using locking materials or lock washers.

Alterations - Locating Pins / Positioning Pins / Centring Pins

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Basic information

Type (Basic Shape)	Large Head	Shape (Head, Outline View)	Round	Shape (Head, Tip View)	Round Tapered
Shape (Head, Mounting Method)	N/A	ISO Tolerance (Head)	0/-0.01

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192Suggestion of an applicable part number.

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Basic Attributes

Type (Mounting Side)
- Straight (Press-Fit)
- Internal Thread
- External Thread
Clear
Material
- Steel
  - EN 1.2510 Equiv.
- Stainless Steel
  - EN 1.4037 Equiv.
  - EN 1.4301 Equiv.
Clear
Surface Treatment
- No Treatment
- Hard Chrome Plating
  - Hard Chrome Plating
- Buffed Surface
Clear
Heat Treatment
- No Treatment
- Directly Quenched
Clear
[D] Diameter (Mounting Side)(mm)
2

3

4

5

6

6T

8

8T

10

12

13

16

20
Clear
ISO Tolerance (Mounting Side)
p6

m6

g6
Clear
[P] Diameter (Head)(mm)
3

4

5

6

8

10

12

13

15

16

20

25

30
Clear
[M] Diameter (Screw)(mm)
2.6

3

4

5

6

8

10

12

16

20
Clear
Type
- CJPRBB
- CJPRBNB
- CJPRBPB
- CJPRBTB
- GJPRBB
- GJPRBNB
- GJPRBPB
- GJPRBTB
- JPRBB
- JPRBNB
- JPRBPB
- JPRBTB
- MJPRBB
- MJPRBNB
- MJPRBPB
- MJPRBTB
- SJPRBB
- SJPRBNB
- SJPRBPB
- SJPRBTB
Clear
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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 .

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