INCH Pins, Sleeves, Blades
®
72
INCH Ejector Sleeves - Nitrided O.D.
Ejector sleeve applications
FIG. A
FIG. B
® ■ Centerless ground and polished outer diameter ■ Inside bearing diameter is 30-35 HRC hardness and finished honed ■ Lead-in taper designed to allow interference-free entry of the ejector pin into the sleeve ■ Outside diameter nitrided to 65-74 HRC hardness and finished to minimize wear ■ Precision made of superior quality thermal shock resisting hotwork die steel ■ Hot-forged heads provide uniform grain flow, higher tensile strength
Figure A shows a typical Ejector Sleeve application for die casting where the sleeve is used to eject the piece part. Figure B shows an application where the sleeve serves as a bush- ing for the ejector pin. This allows replacement without machining if wear occurs. This practice is also desirable where the ejector pin is located between cavity inserts. Using a sleeve as a bushing provides a full bearing
NOTE GENEROUS LEAD-IN FOR INTERFERENCE-FREE ENTRY.
INCH Ejector Sleeves – S
ITEM NUMBER PREFIX
Ø H HEAD DIA
K HEAD THICK
L = LENGTH
Ø D I.D.
Ø E O.D.
3
4
5
6
7
8
9
10
11
12
14
†S13M_*_ 3/32 (.0937) 3/16 (.1875) †S15M_*_ 1/8 (.1250) 7/32 (.2187)
.375 .406 .437 .500 .562 .625 .687 .750 .875 .937
.187 .187 .187 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250
S17M_*_ 5/32 (.1562)
1/4 (.2500)
S21M_*_ 3/16 (.1875) 5/16 (.3125) S23M_*_ 7/32 (.2187) 11/32 (.3437)
S25M_*_ 1/4 (.2500)
3/8 (.3750)
S29M_*_ 5/16 (.3125) 7/16 (.4375)
S33M_*_ 3/8 (.3750) S37M_*_ 7/16 (.4375)
1/2 (.5000) 5/8 (.6250)
S39M_*_ 1/2 (.5000) 11/16 (.6875)
S41M_*_ 9/16 (.5625) S45M_*_ 5/8 (.6250) S47M_*_ 3/4 (.7500)
3/4 (.7500) 7/8 (.8750)
1.000 1.125 1.250
1
(1.0000)
†S13 and S15 have a 1.75 bearing length.
KEY TO CHART
Items in stock 2-3 week delivery Contact usfor quote
*HOW to order: C ombine Item Prefix and the length (L dimension) desired. Examples: S15M6, S39M10
U.S. 800-626-6653 • Canada 800-387-6600 • dme.net • store.dme.net
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