Locating Pins Large Head, Round Tapered, Tapped

MISUMI

Product Overview

The locating 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 round tapered type allows for smooth insertion and easy installation.

Dimensional Drawing

Specifications Overview

■Material Specification Table

Material No.	Material	Surface Treatment	Hardness	Type	D Tolerance and Shape Code
①	Alloy tool steel or bearing steel	-	Quenching hardness 55HRC~	E-JPRB	TB(Tapped)
②	Alloy tool steel or bearing steel	Hard Chrome Plated	Quenching hardness 50HRC~	E-GJPRB
②	Alloy tool steel or bearing steel	Plating thickness: 3μm or more	Plating hardness 750HV～	E-GJPRB
③	Austenitic stainless steel	-	-	E-SJPRB
④	Martensitic stainless steel	-	Quenching hardness 50HRC~	E-CJPRB
⑤	Alloy tool steel or bearing steel	Buffed	Quenching hardness 50HRC~	E-MJPRB
⑥	Alloy tool steel or bearing steel	Hard Chrome Plated + Buffed Thickness: 3μm or more	Quenching hardness 50HRC~	E-MGJPRB
⑦	Martensitic stainless steel	Buffed	Quenching hardness 50HRC~	E-MCJPRB

If there are requirements on rust prevention, give priority to the hard-chrome plated products, products with surface treatment of electroless nickel plating or products made of SUS3 stainless steel.

Specification Table

Part Number				③P Selection									L	(B)	(E)	M (Coarse Thread)	ℓ
①Type	①Shape Code	②D	D Dimension Tolerance g7
Tapped	①Shape Code	②D	D Dimension Tolerance g7
E-JPRB E-GJPRB E-SJPRB E-CJPRB E-MJPRB E-MGJPRB E-MCJPRB	TB	6	-0.004 -0.016	8	10								10	8	5	M3	5
		6T	-0.004 -0.016	8	10								10			M2.6	4
		8	-0.005 -0.020		10	12	13						15			M5	8
		8T			10	12	13									M4	6
		10				12	13	15						10		M5	8
		12	-0.006 -0.024				13	15	16						6	M5	8
		13						15	16				22		6	M8	12
		16								20	25		22		7
		20	-0.007 -0.028								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 part. Precautions for Strength

Please confirm pilot hole depth. Depth. Holes may go through.

Product Features

Usage outline of tip shape selectable locating pins Locating Pins

Feature 1: For large head round tapered locating pins, the mounting methods include the press-fit type, tapped type and threaded type, suitable for installation in various working conditions.
Feature 2: Optional material: iron (alloy tool steel or bearing steel); stainless steel (austenitic stainless steel, martensitic stainless steel), suitable for positioning of various workpieces.
Feature 3: Hard chrome plated surface, effectively ensuring surface hardness and antirust.
Feature 4: Buffed types have smooth surface without edges and corners, facilitating smooth insertion of workpieces for positioning.
Feature 5: Tolerance of mounting part: m7, g7, p7.

Precautions

①Dimensional tolerance and fit parameter table For details, click

Tolerance Fit Parameter Table
②Reference table for common dimensions without indicated tolerance (medium accuracy m) For details, click

List of Common Tolerances
③Reference value for thread mounting torque For details, click

Thread Torque

Example of Use

Example introduction: Round and diamond types combined for positioning
①The combination of round and diamond types in the fixture enables more accurate positioning in A direction and reduction of the mating hole pitch error in B direction.
②Of the 2 locating pins, the cylindrical shape is taken as reference for 1 locating pin, and the cut-flat position on the round shape (diamond type) in the direction of the center distance of the two holes is taken as reference for the other, which enables mounting/dismounting operations and ensures positioning accuracy.
③Taking advantage of the different heights of the 2 locating pins, insert the tall pin for pre-positioning and then the short pin for precise positioning.

Application Industries

Lithium battery	Semiconductor	Medical

Smart Phones	Electronic & Electrical	Robotics

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

Representative model: JBH6-8	Representative model: JBA3-8	Representative 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