INCH PINS, SLEEVES, BLADES INCH Ejector Sleeves – Nitrided O.D.
Ejector sleeve applications Fig. A shows a typical Ejector Sleeve application for plastics molding or die casting where the sleeve is used to eject the piece part. Fig. B shows an application where the sleeve serves as a bushing 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 diameter for the pin.
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Precision made of superior quality thermal shock resisting hotwork die steel Hot-forged heads provide uniform grain flow, higher tensile strength Outside diameter nitrided to 65-74 HRC hardness and finished to minimize wear 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
FIG. A
FIG. B
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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)
.375 .375 .406 .406 .437 .437 .500 .500 .562 .562 .625 .625 .687 .687 .750 .750 .875 .875 .937 .937
.187 .187 .187 .187 .187 .187 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250
† S13M_*_OS 3/32 (.0937)
0.1925
† S15M_*_ 1/8 (.1250) 7/32 (.2187)
† S15M_*_OS 1/8 (.1250) S17M_*_ 5/32 (.1562) S17M_*_OS 5/32 (.1562)
0.2237
1/4 (.2500)
0.2550
S21M_*_ 3/16 (.1875) 5/16 (.3125)
S21M_*_OS 3/16 (.1875)
0.3175
S23M_*_ 7/32 (.2187) 11/32 (.3437)
S23M_*_OS 7/32 (.2187)
0.3487
S25_*_
1/4 (.2500)
3/8 (.3750)
S25M_*_OS 1/4 (.2500)
0.3800
S29M_*_ 5/16 (.3125) 7/16 (.4375)
S29M_*_OS 5/16 (.3125) S33M_*_ 3/8 (.3750) S33M_*_OS 3/8 (.3750) S37M_*_ 7/16 (.4375) S37M_*_OS 7/16 (.4375)
0.4425
1/2 (.5000)
0.5050
5/8 (.6250)
0.6300
S39M_*_ 1/2 (.5000) 11/16 (.6875)
S39M_*_OS 1/2 (.5000) S41M_*_ 9/16 (.5625) S41M_*_OS 9/16 (.5625) S45M_*_ 5/8 (.6250) S45M_*_OS 5/8 (.6250) S47M_*_ 3/4 (.7500)
0.6925
3/4 (.7500)
1.000 1.000 1.125 1.125 1.250 1.250
0.7550
7/8 (.8750)
0.8800
1 (1.0000)
S47M_*_OS 3/4 (.7500) .250 † SND13 and SND15 have a 1.75 bearing length. All sleeves are for use with DME INCH Ejector Pins. 1.0050
KEY TO CHART
Standard
*HOW TO ORDER: Combine Item Prefix and the length (L dimension) desired. Examples: S15M6, S39M10
Contact DME for quote
389
U.S. 800-626-6653 ■ Canada 800-387-6600 ■ DME@DME.net ■ www.DME.net ■ store.DME.net
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