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Spur Gears - Norfolk Bearings and Supply Company, Inc.

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Teeth<br />

No. 1A<br />

Ladder Chain Sprockets<br />

Type B Single Hub<br />

Nos. 1A <strong>and</strong> 1; Bronze <strong>and</strong> Steel (All Sprockets Equipped with St<strong>and</strong>ard Setscrews, Except CBA 8)<br />

ORDER BY CATALOG NUMBER OR ITEM CODE<br />

Pitch<br />

Bore<br />

Hub<br />

Style<br />

Catalog Item<br />

Diam.<br />

Diameter Project<br />

Number Code<br />

BRONZE SPROCKETS<br />

8 .48 1/8 5/16† 7/32 Plain CBA8 16856<br />

10 .60 1/8 3/8 7/32 Plain CBA10 16858<br />

12 .71 3/16 7/16 7/32 Plain CBA12 16860<br />

15 .88 3/16 7/16 7/32 Plain CBA15B 16862<br />

18 1.06 3/16 1/2 1/4 Plain CBA18B 16864<br />

20 1.18 3/16 5/8 1/4 Plain CBA20B 16866<br />

24 1.41 3/16 3/4 1/4 Plain CBA24B 16868<br />

32 1.88 1/4 5/8 5/16 Plain CBA32 16870<br />

36 2.12 5/16 3/4 3/8 Plain CBA36 16872<br />

STEEL SPROCKETS<br />

7 .42 3/16 3/8† 1/2 Plain CA7 14780<br />

8 .48 3/16 7/16† 1/2 Plain CA8 14782<br />

9 .54 1/4 1/2† 1/2 Plain CA9 14784<br />

10 .60 1/4 9/16† 1/2 Plain CA10 14786<br />

12 .71 1/4 11/16† 1/2 Plain CA12 14788<br />

14 .83 1/4 3/4† 1/2 Plain CA14 14790<br />

16 .95 5/16 7/8† 1/2 Plain CA16 14792<br />

20 1.18 5/16 7/8 13/32 Plain CA20 14794<br />

24 1.41 5/16 7/8 13/32 Plain CA24 14796<br />

34 2.00 3/8 1-1/4 1/2 Plain CA34 14798<br />

42<br />

No. 1<br />

2.47 3/8 1-1/4 1/2 Plain CA42 14800<br />

BRONZE SPROCKETS<br />

6 .57 3/16 11/32† 1/4 Plain CB1 6 16878<br />

8 .75 3/16 1/2 1/4 Plain CB1 8 16880<br />

10 .93 3/16 1/2 1/4 Plain CB1 10 16882<br />

11 1.01 3/16 1/2 1/4 Plain CB1 11 16884<br />

12 1.10 3/16 1/2 1/4 Plain CB1 12 16886<br />

14 1.28 1/4 5/8 5/16 Plain CB1 14 16890<br />

24 2.19 5/16 3/4 3/8 Plain CB1 24 16900<br />

32 2.92 5/16 3/4 3/8 Plain CB1 32 16904<br />

†Has Recessed Groove in Hub for Chain Clearance<br />

STANDARD TOLERANCES<br />

Dimension Tolerance<br />

Bore All ±.001<br />

P-1930-BG 04/10 Boston Gear 800-825-6544 291<br />

.087<br />

.087<br />

.120<br />

P.D.<br />

P.D.<br />

P.D.<br />

7/32<br />

7/32<br />

5/32<br />

3/32<br />

7/32<br />

H

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