Bushings for Locating Pins Compact Flanged

The locating pin bushing is a mechanical positioning component used together with a locating pin to provide guidance. It is easy to install, offers high fastening strength, saves space, and can effectively prevent rapid wear of the workpiece.

Type		Fixed P Dimension		Custom P Dimension		Surface Treatment
Fixed P Dimension, selectable L Dimension	Custom P Dimension, L Dimension	Material	Hardness	Material	Hardness
E-JBN	E-JBNF	Equivalent to SUJ2	Quenched hardness 58 HRC or more	Equivalent to 9CrWMn (alloy tool steel or bearing steel)	Quenched hardness 56–60 HRC	—
—	E-JBNFB					Magnetite protective film
E-JBNM	E-JBNFM					Electroless nickel plating
E-JBNS	E-JBNFS	Austenitic stainless steel	—	Austenitic stainless steel	—	—
—	E-JBNFC	—	—	Martensitic stainless steel	Quenched hardness 50 HRC or more	—

If rust prevention is required, please give priority to products with electroless nickel plating surface treatment or made of austenitic stainless steel materials.
Since the wall thickness of the countersunk hole is only about 1.5 mm and the product has high hardness, please make sure the flange edge is fully in contact with the mounting surface before tightening the bolts. Otherwise, there is a risk of the countersunk hole cracking.
The bushing inner diameter tolerance is highly precise. If a vernier caliper is used for measurement, it may result in a smaller reading. It is recommended to use high-precision measuring instruments (such as an inside micrometer or plug gauge) for inspection.

■ Fixed P dimension · selectable L dimension type

Type		Length L selection									R	H	W	T	Outer diameter dimension Dg7		A	d	d1	h
Type	Inner diameter size P
E-JBN E-JBNM E-JBNS	5	8	10	12	16						1	25	12	5	10	-0.005 -0.020	17	3.3	6.5	3.5
	6
	8		10	12	16	20					2	28	15		12	-0.006 -0.024	20
	10											36	22	6	15		26	4.5	8	4.5
	12			12	16	20	25	30							18
	13											40	25		22	-0.007 -0.028	30
	15											44	30		25		34
	16				16	20	25	30	35						26
	20										3	56	35	8	30		42	6.6	11	6.5
	25					20	25	30	35	40		60	40		35	-0.009 -0.034	46

■ Custom P Dimension, L Dimension type

Type			Inner diameter P Specified unit: 0.01 mm	Length L Specified unit: 0.1 mm	R	H	W	T	A	d	d1	h
Type	Outer diameter dimension Dg7
E-JBNF E-JBNFB E-JBNFM E-JBNFS E-JBNFC	10	-0.005 -0.020	4.00–6.50	5.0–15.0	1	25	12	5	17	3.3	6.5	3.5
	12	-0.006 -0.024	6.00–8.50		2	28	15		20
	15		8.00–10.50	10.0–35.0		36	22	6	26	4.5	8	4.5
	18		10.00–12.50
	20	-0.007 -0.028	12.00–13.50			40	25		30
	22		12.00–13.50
	25		13.00–15.50			44	30		34
	26		15.00 to 16.50
	30		16.00 to 20.50	12.0 to 50.0	3	56	35	8	42	6.6	11	6.5
	35	-0.009 -0.034	20.00 to 25.00			60	40		46

L+T ≤ P × 3.0

(1) Dimensional tolerance and fit parameter table
(2) Change in inner diameter when pressing in fixture bushings
The inner diameter of the fixture bushing will shrink when press-fitted.
The amount of shrinkage varies depending on the material of the mounting part and the D dimension tolerance of the bushing.
[Example of shrinkage during press-fitting]