Spur Gears - Norfolk Bearings and Supply Company, Inc.
Spur Gears - Norfolk Bearings and Supply Company, Inc.
Spur Gears - Norfolk Bearings and Supply Company, Inc.
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A<br />
<strong>Spur</strong> <strong>Gears</strong><br />
48 Diametral Pitch (Delrin)<br />
20° Pressure Angle (will not operate with 14-1⁄2° spurs)<br />
FACE<br />
PITCH<br />
DIA.<br />
STANDARD TOLERANCES *<br />
DIMENSION TOLERANCE<br />
BORE All +.001 – .000<br />
*<strong>Gears</strong> with Brass Inserts only.<br />
48 D.P.<br />
REFERENCE PAGES<br />
Alterations — 314<br />
Materials — 315<br />
HUB<br />
PROJ.<br />
BORE<br />
OVERALL<br />
LENGTH<br />
†All YPB gears have setscrews.<br />
HUB<br />
DIA.<br />
BORE SETSCREW<br />
1/8 #2-56<br />
3/16 #4-40<br />
1/4 #6-32<br />
ALL DIMENSIONS IN INCHES<br />
ORDER BY CATALOG NUMBER OR ITEM CODE<br />
No. Hub<br />
Style<br />
See<br />
Without Keyway<br />
or Setscrew †<br />
of Pitch Page Catalog Item<br />
Teeth Dia. Bore Dia. Proj. 315 Number Code<br />
48<br />
Face = .125"<br />
Outside Dia. = Pitch Dia. + .042"<br />
DIAMETRAL PITCH Overall Length = .125" + Hub Proj.<br />
MOLDED DELRIN<br />
44<br />
45<br />
.917<br />
.938<br />
.188 .55<br />
YP4844<br />
YP4845<br />
53926<br />
53927<br />
48 1.000 YP4848 53928<br />
52 1.083 YP4852 53929<br />
54 1.125 YP4854 53930<br />
56 1.168 YP4856 53931<br />
60 1.250 YP4860 53932<br />
64<br />
66<br />
1.333<br />
1.375<br />
.250 .61 .25 B<br />
YP4864<br />
YP4866<br />
53933<br />
53934<br />
72 1.500 YP4872 53935<br />
80 1.667 YP4880 53936<br />
84 1.750 YP4884 53937<br />
96 2.000 YP4896 53938<br />
100 2.083 YP48100 53939<br />
108 2.250 YP48108 53940<br />
120 2.500 YP48120 53941<br />
MOLDED DELRIN WITH BRASS INSERTS<br />
18<br />
19<br />
.375<br />
.396<br />
.31<br />
YPB4818<br />
YPB4819<br />
53942<br />
53943<br />
20<br />
21<br />
22<br />
23<br />
.417<br />
.438<br />
.458<br />
.479<br />
.125<br />
.34<br />
.38<br />
YPB4820<br />
YPB4821<br />
YPB4822<br />
YPB4823<br />
53944<br />
53945<br />
53946<br />
53947<br />
24<br />
25<br />
.500<br />
.521<br />
.40<br />
YPB4824<br />
YPB4825<br />
53948<br />
53949<br />
26<br />
27<br />
.542<br />
.562<br />
.45<br />
YPB4826<br />
YPB4827<br />
53950<br />
53951<br />
28<br />
29<br />
.583<br />
.604<br />
.48<br />
YPB4828<br />
YPB4829<br />
53952<br />
53953<br />
30 .625 .50 A YPB4830 53954<br />
31 .646 YPB4831 53955<br />
32 .667 YPB4832 53956<br />
33 .688 YPB4833 53957<br />
34 .708 .188 YPB4834 53958<br />
35 .729 YPB4835 53959<br />
36 .750 YPB4836 53960<br />
37 .771 .55 .25 YPB4837 53961<br />
38 .792 YPB4838 53962<br />
39 .813 YPB4839 53963<br />
40 .833 YPB4840 53964<br />
42 .875 YPB4842 53965<br />
44 .917 YPB4844 53966<br />
45 .938 YPB4845 53967<br />
48 1.000 YPB4848 53968<br />
52 1.083 YPB4852 53969<br />
54 1.125 YPB4854 53970<br />
56 1.168 YPB4856 53971<br />
60 1.250 YPB4860 53972<br />
64 1.333 YPB4864 53973<br />
66 1.375 .250 .61 B YPB4866 53974<br />
72 1.500 YPB4872 53975<br />
80 1.667 YPB4880 53976<br />
84 1.750 YPB4884 53977<br />
96 2.000 YPB4896 53978<br />
100 2.083 YPB48100 53979<br />
108 2.250 YPB48108 53980<br />
120 2.500 YPB48120 53981<br />
38 Boston Gear 800-825-6544 P-1930-BG 04/10
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