Spur & Change Gears

Discover a wide array of shaft couplings, chains and sprockets, belts and sheaves, and drive components.
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Brand: Boston Gear (Altra)

Boston Gear (Altra) NA20B   

External Tooth Spur Gear - 20 DP, 14.5 ° Pressure Angle, 3/8 in Face, 20 Teeth, 1.1 in Outside Diameter, Rough Stock, 3/8 in Bore, Hub without Keyway or Set Screw, Steel Material

MI ITEM 00369737

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Boston Gear (Altra) NA20B
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Boston Gear (Altra) NA20B

Boston Gear (Altra) ND60   

External Tooth Spur Gear - 12 DP, 14.5 ° Pressure Angle, 3/4 in Face, 60 Teeth, 5.167 in Outside Diameter, Rough Stock, 3/4 in Bore, Hub without Keyway or Set Screw, Cast Iron Material

MI ITEM 00370118

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Boston Gear (Altra) ND60
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Boston Gear (Altra) ND60

Boston Gear (Altra) YB24-3/4   

External Tooth Spur Gear - 16 DP, 20 ° Pressure Angle, 3/4 in Face, 24 Teeth, 1-5/8 in Outside Diameter, Finished Bore, 3/4 in Bore, Hub with Keyway and Set Screw, Steel Material

MI ITEM 00373593

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Boston Gear (Altra) YB24-3/4
$88.34each
for your price $88.34each
Boston Gear (Altra) YB24-3/4

Boston Gear (Altra) YB12-3/8   

External Tooth Spur Gear - 16 DP, 20 ° Pressure Angle, 3/4 in Face, 12 Teeth, 7/8 in Outside Diameter, Rough Stock, 3/8 in Bore, Hub with Keyway and Set Screw, Steel Material

MI ITEM 00374221

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Boston Gear (Altra) YB12-3/8
$58.13each
for your price $58.13each
Boston Gear (Altra) YB12-3/8

Boston Gear (Altra) G149   

External Tooth Spur Gear - 48 DP, 14.5 ° Pressure Angle, 1/8 in Face, 120 Teeth, 2.542 in Outside Diameter, Rough Stock, 5/16 in Bore, Hub without Keyway or Set Screw, Brass Material

MI ITEM 00366456

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Boston Gear (Altra) G149
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Boston Gear (Altra) G149

Boston Gear (Altra) GB39   

Change Gear - 16 DP, 14.5 ° Pressure Angle, 39 Teeth, 0.5000 in Bushing Bore Dia., 0.5000 in Face Width, 5.0000 in O.D.

MI ITEM 00367230

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Boston Gear (Altra) GB39
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Boston Gear (Altra) GB39

Boston Gear (Altra) S2424   

External Tooth Spur Gear - 24 DP, 14.5 ° Pressure Angle, 1/4 in Face, 24 Teeth, 1.083 in Outside Diameter, Rough Stock, 1/2 in Bore, No Hub, Steel Material

MI ITEM 00371485

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Boston Gear (Altra) S2424
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Boston Gear (Altra) S2424

Boston Gear (Altra) S2412   

External Tooth Spur Gear - 24 DP, 14.5 ° Pressure Angle, 1/4 in Face, 12 Teeth, 0.583 in Outside Diameter, Rough Stock, 1/4 in Bore, No Hub, Steel Material

MI ITEM 00371475

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Boston Gear (Altra) S2412
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Boston Gear (Altra) S2412

Boston Gear (Altra) G142   

External Tooth Spur Gear - 48 DP, 14.5 ° Pressure Angle, 1/8 in Face, 48 Teeth, 1.042 in Outside Diameter, Rough Stock, 1/4 in Bore, Hub without Keyway or Set Screw, Brass Material

MI ITEM 00366443

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Boston Gear (Altra) G142
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Boston Gear (Altra) G142

Boston Gear (Altra) Y3248   

External Tooth Spur Gear - 32 DP, 20 ° Pressure Angle, 0.188 in Face, 48 Teeth, 1.562 in Outside Diameter, Rough Stock, 1/4 in Bore, Hub without Keyway or Set Screw, Brass Material

MI ITEM 00371579

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Boston Gear (Altra) Y3248
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Boston Gear (Altra) Y3248

Boston Gear (Altra) NA22B   

External Tooth Spur Gear - 20 DP, 14.5 ° Pressure Angle, 3/8 in Face, 22 Teeth, 1.2 in Outside Diameter, Rough Stock, 3/8 in Bore, Hub without Keyway or Set Screw, Steel Material

MI ITEM 00369742

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Boston Gear (Altra) NA22B
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Boston Gear (Altra) NA22B

Boston Gear (Altra) ND12B   

External Tooth Spur Gear - 12 DP, 14.5 ° Pressure Angle, 3/4 in Face, 12 Teeth, 1.167 in Outside Diameter, Rough Stock, 1/2 in Bore, Hub without Keyway or Set Screw, Steel Material

MI ITEM 00370030

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Boston Gear (Altra) ND12B
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Boston Gear (Altra) ND12B
Boston Gear (Altra) NA20B
MI ITEM 00369737
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Boston Gear (Altra) ND60
MI ITEM 00370118
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Boston Gear (Altra) YB24-3/4
MI ITEM 00373593
Factory Order Item
$88.34each
Boston Gear (Altra) YB12-3/8
MI ITEM 00374221
Factory Order Item
$58.13each
Boston Gear (Altra) G149
MI ITEM 00366456
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Quote Required
Boston Gear (Altra) GB39
MI ITEM 00367230
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Boston Gear (Altra) S2424
MI ITEM 00371485
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Boston Gear (Altra) S2412
MI ITEM 00371475
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Boston Gear (Altra) G142
MI ITEM 00366443
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Boston Gear (Altra) Y3248
MI ITEM 00371579
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Boston Gear (Altra) NA22B
MI ITEM 00369742
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Boston Gear (Altra) ND12B
MI ITEM 00370030
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