Locating Pin Large Head, Spherical Tip, Selectable Tolerance, Press-Fit Type

Brand :

MISUMI

Caution

Product Description

Product Overview

The positioning pin is used for the spatial positioning in the directions of X and Y axes, mainly using the workpiece hole as the positioning benchmark or used in conjunction with bushings, in which the large head spherical type is easy to install, and the spherical part ensures smooth positioning and protects the workpiece. A wide range of tolerances are available to meet design requirements.

Dimensional Drawing

■Material Specification Table

Material No.	Material	Surface Treatment	Hardness	Type	Shape Symbol
Material No.	Material	Surface Treatment	Hardness	Standard	Shape Symbol
①	SKS3 Equivalent	-	Quenching hardness 60 to 63HRC	E-KFQ	A(Round) D(Diamond)
②	SKS3 Equivalent	Hard Chrome Plated	Quenching hardness 50 to 55HRC	E-GKFQ
③	SUS304 Equivalent	-	-	E-SKFQ
④	SUS304 Equivalent	Hard Chrome Plated	-	E-HKFQ
⑤	SUS440C Equivalent	-	Quenching hardness 50 to 55HRC	E-CKFQ
⑥	SKS3 Equivalent	Buffed	Quenching hardness 60 to 63HRC	E-MKFQ
⑦	SKS3 Equivalent	Hard Chrome Plated + Polished	Quenching hardness 60 to 63HRC	E-MGKFQ
⑧	SUS440C Equivalent	Buffed	Quenching hardness 50 to 55HRC	E-MCKFQ

Hard Chrome Plating: Plating hardness 750HV~

If rust prevention is required, please prioritize products with hard chrome plating or austenitic stainless steel materials.

Specifications Overview

■ Detailed Table of D Dimension and P Dimension Tolerances

D or P	Normal					Precision
	M	P	G	H	S	A	B
	m7	p7	g7	h7	-	-	-
1 to 3	+0.012 +0.002	+0.018 +0.009	-0.003 -0.012	0 -0.01	0 -0.02	+0.005 0	0 -0.005
3.01 to 6	+0.016 +0.004	+0.024 +0.012	-0.004 -0.016	0 -0.012
6.01 to 10	+0.021 +0.006	+0.030 +0.015	-0.005 -0.020	0 -0.015
10.01 to 18	+0.025 +0.007	+0.036 +0.018	-0.006 -0.024	0 -0.018
18.01 to 30	+0.029 +0.008	+0.043 +0.022	-0.007 -0.028	0 -0.021

Precision grade tolerance cannot be selected for hard chrome plated or polished products.

The D section, equivalent to martensitic stainless steel type, is equipped with an identification groove.

Austenitic stainless steel may not have grinding or center holes.

Because it has a center hole, when the P dimension is small, the spherical part is almost invisible.

Specification Table

■ Standard

Part Number						P Can be specified down to 0.01 mm increments	L can be specified down to 1 mm increments	B Can be specified down to 0.1 mm increments	C	(W)
Type		Shape	D tolerance Selection	P Tolerance Select	D	P Can be specified down to 0.01 mm increments	L can be specified down to 1 mm increments	B Can be specified down to 0.1 mm increments	C	(W)
E-KFQ E-GKFQ^* E-SKFQ E-HKFQ^* E-CKFQ	(Polished Product) E-MKFQ^* E-MGKFQ^* E-MCKFQ^* Suitable for D ≥ 5	A(Round) D(Diamond)	M P G H ^A ^B	S M P G H ^A ^B	1	1.00 to 3.00 (2.50)	2·3	2.0 to 5.0	0.1	-
					2	2.00 to 6.00 (4.00)	2 to 6	2.0 to 15.0 (10.0)	0.5	1.2
					3	3.00 to 8.00	3 to 10	2.0 to 15.0 (10.0)	0.5	1.5
					4	4.00 to 8.00	3(4)Up to 14	2.0 to 15.0 (10.0)	1	1.8
					5	5.00 to 10.00	5 to 15	2.0 to 15.0 (10.0)		2.2
					6	6.00 to 10.00	5 to 15	2.0 to 30.0 (15.0)		3.0
					8	8.50 to 15.00	5(6)Up to 16	2.0 to 30.0 (15.0)	1.5	3.5
					10	10.00 to 17.00	5(10)Up to 20	3.0 to 30.0 (25.0)	2	4.0
					12	12.00 to 18.00	6(10)Up to 24	3.0 to 30.0 (25.0)		5.0
					13	13.00 to 20.00	7(12)Up to 26	5.0 to 30.0 (25.0)		5.5
					16	16.00 to 27.00	8 (15)Up to 32	5.0 to 30.0	3	7.0
					20	20.00 to 30.00	10 (15)Up to 40	5.0 to 30.0	3	9.0

P·L·B() dimensions are suitable for diamond types.

Hard chrome plated and polished products cannot select tolerance symbols marked with * (Precision Grade A, B)

Product Features

Usage outline of spherical type locating pins Locating Pins

Feature 1: Standard type with spherical head. Press-fit and guide sections can specify shaft diameter tolerances: m7, p7, g7, h7, 0/-0.02, +0.005/0, 0/-0.005.
Feature 2: Multiple installation methods are available, including press-fit, internal thread, and external thread types.
Feature 3: Optional Material: Iron (alloy tool steel or bearing steel); Stainless Steel (austenitic stainless steel, martensitic stainless steel), suitable for positioning of a variety of workpieces.
Feature 4: Hard chrome plated surface, effectively ensuring surface hardness and antirust.
Feature 5: The lead-in part of the sphere can make the workpiece lead in by sliding sideways, without damage.

Precautions

(1) Dimensional Tolerance and Fit Parameter Table For details, click

Tolerance and Fit Parameter Table
(2) Reference Table for Unmarked Tolerance General Dimensions (Medium Precision m) For details, click

General Tolerance Overview
(3) Reference Values for Thread Installation Torque The tightening torque (reference value) is technical data for the

Thread Torque tightening torque strength classification (8.8), with the tightened state maintained for more than 24 hours. Not applicable when using a relaxant or spring washer.

Example of Use

Case Introduction: Positioning of Plastic Frame
(1) The outer frame of the plastic has some areas with relatively thin wall thickness. When positioning on the tooling plate, it is easy for the frame to rub against the positioning parts, which can cause scratches, deformation, or even breakage of the product.
(2) The spherical shape of the spherical positioning pin allows the circuit frame to slide smoothly into the designated position without damaging the product.
(3) The plastic frame products contain glass fiber, and the spherical positioning pins with hard chrome plating ensure excellent wear resistance and extend service life.

Application Industries

Lithium battery	Semiconductor	Medical

Smart phone	Electronic & Electrical Appliances	Robotics

Bushing for positioning pin Shouldered	Bushing for positioning pin Straight type	Bushing for positioning pin Slotted hole type Shouldered type

Typical model: JBH6-8	Typical model: JBA3-8	Typical Model: JBPE10-P6.8-W4.82-L15
Advantages: suitable for applications where it is difficult to adjust the hole depth	Advantages: space-saving	Advantages: absorbs clearance errors