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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MOUNTING<br />
DISTANCE<br />
PITCH<br />
DIA.<br />
BORE<br />
SETSCREW<br />
HUB<br />
DIA.<br />
FACE<br />
HUB<br />
PROJ.<br />
ALL DIMENSIONS IN INCHES<br />
ORDER BY CATALOG NUMBER OR ITEM CODE<br />
Bevel <strong>Gears</strong><br />
8 through 4 Diametral Pitch (Steel – Unhardened, Hardened & Cast Iron)<br />
20° Pressure Angle<br />
All gears have “Coniflex” ® tooth form.<br />
All Hardened steel gears have teeth only hardened <strong>and</strong> are<br />
equipped with st<strong>and</strong>ard keyways <strong>and</strong> setscrews.<br />
PITCH<br />
DIA.<br />
STANDARD TOLERANCES<br />
DIMENSION TOLERANCE<br />
BORE All ±.0005<br />
D<br />
KEYWAY<br />
D<br />
MOUNTING<br />
DISTANCE<br />
REFERENCE PAGES<br />
Alterations — 314<br />
Horsepower Ratings — 82<br />
Lubrication — 314<br />
Materials — 315<br />
Selection Procedure — 79<br />
No. of Pitch MD Hub Catalog Item Catalog Item Catalog Item<br />
Ratio Teeth Dia. Face Bore * D Dia. Proj. Number Code Number Code Number Code<br />
8 STEEL STEEL CAST IRON GEARS<br />
DIAMETRAL PITCH UNHARDENED HARDENED STEEL PINIONS<br />
40 5.000 .83<br />
1.000<br />
1.500<br />
2.875 1.850 3.00 1.25<br />
L156Y-G 12252<br />
— —<br />
— —<br />
HL156Y-G 11886<br />
—<br />
—<br />
—<br />
—<br />
2:1 20 2.500 .83 1.000 4.000 2.290 2.12 1.41 L156Y-P 12272 HL156Y-P 11888 — —<br />
40<br />
20<br />
5.000<br />
2.500<br />
.83<br />
1.000<br />
.875<br />
2.875<br />
4.000<br />
1.850<br />
2.290<br />
3.00<br />
2.12<br />
1.25<br />
1.41<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA528Y-G<br />
PA528Y-P<br />
12424<br />
12426<br />
3:1<br />
48<br />
16<br />
6.000<br />
2.000<br />
.84<br />
.875<br />
.750<br />
2.375<br />
4.250<br />
1.632<br />
2.085<br />
2.75<br />
1.75<br />
1.00<br />
1.19<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA638Y-G<br />
PA638Y-P<br />
12436<br />
12438<br />
4:1<br />
6<br />
64<br />
16<br />
72<br />
18<br />
8.000<br />
2.000<br />
9.000<br />
2.250<br />
.85<br />
1.23<br />
1.000<br />
.875<br />
1.125<br />
.875<br />
2.750<br />
5.250<br />
3.250<br />
5.750<br />
1.882<br />
2.105<br />
2.320<br />
2.470<br />
2.75<br />
1.88<br />
3.00<br />
2.13<br />
1.25<br />
1.22<br />
1.69<br />
1.22<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA848Y-G<br />
PA848Y-P<br />
PA948Y-G<br />
PA948Y-P<br />
12452<br />
12454<br />
12460<br />
12462<br />
DIAMETRAL PITCH<br />
36<br />
18<br />
6.000<br />
3.000<br />
1.07<br />
1.06<br />
1.125<br />
3.500<br />
4.750<br />
2.260<br />
2.765<br />
3.25<br />
2.50<br />
1.50<br />
1.59<br />
L158Y-G 12278<br />
L158Y-P 12280<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
36 6.000 1.07 1.750 3.500 2.260 3.25 1.50 — — HL158Y-G 11890 — —<br />
18 3.000 1.06 1.125 4.750 2.765 2.50 1.59 — — HL158Y-P 11892 — —<br />
2:1<br />
36<br />
18<br />
6.000<br />
3.000<br />
1.07<br />
1.125<br />
1.000<br />
3.500<br />
4.750<br />
2.260<br />
2.765<br />
3.25<br />
2.50<br />
1.50<br />
1.59<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA626Y-G<br />
PA626Y-P<br />
12432<br />
12434<br />
42<br />
21<br />
7.000<br />
3.500<br />
1.06<br />
1.125<br />
1.000<br />
3.750<br />
5.000<br />
2.305<br />
2.515<br />
3.50<br />
2.50<br />
1.50<br />
1.25<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA726Y-G<br />
PA726Y-P<br />
12440<br />
12442<br />
48<br />
24<br />
8.000<br />
4.000<br />
1.18<br />
1.125<br />
1.000<br />
3.438<br />
5.438<br />
1.898<br />
2.560<br />
3.25<br />
2.62<br />
1.00<br />
1.25<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA826Y-G<br />
PA826-Y-P<br />
12448<br />
12450<br />
3:1<br />
5<br />
45<br />
15<br />
7.500<br />
2.500<br />
1.08<br />
1.125<br />
.875<br />
3.000<br />
5.250<br />
2.132<br />
2.575<br />
3.25<br />
2.12<br />
1.25<br />
1.44<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA7536Y-G 12520<br />
PA7536Y-P 12522<br />
DIAMETRAL PITCH<br />
2:1<br />
30<br />
15<br />
6.000<br />
3.000<br />
1.05<br />
1.125<br />
1.000<br />
3.500<br />
4.375<br />
2.257<br />
2.390<br />
3.25<br />
2.62<br />
1.38<br />
1.28<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA625Y-G<br />
PA625Y-P<br />
12428<br />
12430<br />
3:1<br />
4<br />
45<br />
15<br />
9.000<br />
3.000<br />
1.32<br />
1.250<br />
1.000<br />
3.750<br />
5.875<br />
2.507<br />
2.685<br />
3.75<br />
2.62<br />
1.69<br />
1.31<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA935Y-G<br />
PA935Y-P<br />
12456<br />
12458<br />
DIAMETRAL PITCH<br />
2:1<br />
32<br />
16<br />
8.000<br />
4.000<br />
1.40<br />
1.125<br />
1.125<br />
4.250<br />
6.000<br />
2.695<br />
3.350<br />
3.75<br />
3.25<br />
1.56<br />
1.81<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
—<br />
PA824Y-G<br />
PA824Y-P<br />
12444<br />
12446<br />
*Mounting Distance (MD) must not be made less than dimension shown, see Page 308.<br />
P-1930-BG 04/10 Boston Gear 800-825-6544 77<br />
C
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