Bushings for Locating Pins Compact Flanged, Slotted Hole

The fixture bushing is a mechanical positioning part that is used in conjunction with a positioning pin to achieve a guiding effect, in which the slotted hole, compact flanged type product has a large space in the long direction for easy insertion of pins to absorb clearance errors, with its shoulder fixed by bolt to prevent falloff, having a flange shape that saves space, and can effectively prevent the rapid wear of the workpiece.

When wall thickness is 2mm or less (D-P)/2≤2, R is 0.5.
Since the wall thickness of the countersunk hole is only about 1.5mm and the product is hard, make sure that the flange edge fits with the mounting surface before locking the bolt. Otherwise there is a risk of rupture of the countersunk hole.
The I.D. tolerance of bushing is high. If a vernier caliper is used for detection, the measurement result will be too small. It is recommended to use a high-precision measuring tool (internal micrometer or plug gauge, etc.) for detection.

■Compact Flanged

Type	Material	Surface Treatment	Hardness
E-JBEH	Alloy tool steel or bearing steel	-	56～60HRC
E-JBEMH		Electroless Nickel Plating	56～60HRC

If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating.

■Compact Flanged, Through Hole

Type	Material	Surface Treatment	Hardness
E-JBFR	General structural steel or carbon steel	-	-
E-JBFM		Electroless Nickel Plating	-
E-JBFK		-	45~50HRC
E-JBFN		Electroless Nickel Plating

If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating.

■Compact Flanged

Part Number			PH7 0.01mm increments	WH7 0.01mm increments	L 1mm increments	T	H	A	B	d	d1	h
Type	D	D Tolerance g6
E-JBEH E-JBEMH	10	-0.005 -0.014	4.00~8.00	3.00≤W＜P	8～40 L+T≤P×3	5	25	17	12	3.3	6.5	3.5
	12	-0.006 -0.017	4.00~10.00				28	20	15
	16		8.00~14.00			6	36	26	22	4.5	8	4.5
	20	-0.007 -0.02	10.00~18.00				40	30	25
	25		13.00~22.00				44	34	30
	30		16.00~25.00			8	56	42	35	6.6	11	6.5
	35	-0.009 -0.025	18.0~25.00				60	46	40

■Compact Flanged, Through Hole

Part Number		P 0.1mm increments	W 0.1mm increments	L 1mm increments	T	H	A	B	d
Type	D
E-JBFR E-JBFM E-JBFK E-JBFN	10	4.0~8.0	4.0≤W＜P	5～40 L+T≤P×3	3	25	17	12	5
	12	4.0~10.0				28	20	15
	15	8.0~13.0				40	30	17	6
	16	8.0~14.0						20
	18	10.0~16.0
	20	10.0~18.0						22
	25	13.0~22.0			4	44	34	30
	30	16.0~25.0			5	56	42	35	8
	35	18.0~25.0				60	46	40

①Dimensional tolerance and fit parameter table For details, click Dimensional Tolerance Fit Table

②Change in inner diameter of the fixture bushing during press-fit

■Change in inner diameter of the fixture bushing during press-fit
The fixture bushing shrinks when press-fitted.
The shrinkage rate varies depending on material of mounting part and D dimension tolerance of bushing.③Reference table for common dimensions without indicated tolerance (medium accuracy m) For details, click Table of Dimensions Without Indicated Tolerance

①Positioning technology reference information Click Positioning Technology
②Surface treatment related anti-rust ability salt spray test reference Click Anti-rust Reference for Metal