American standard racks
American standard racks Machined Gear Rack
Standard Face Width
Steel—141/2° & 20° Pressure Angle
Diameter Data
Catalog Number | Pitch | Face
Width (Inches) |
Overall
Thickness (Inches) |
Pitch
Line Backing |
App_ Weight Lbs./Pc | |
141/2°P.A. | 20°P.A. | |||||
R3x2 | TR3X2 | 3 | 3 | 1 1/2 | 1.167 | 24.0 |
R3x4 | TR3X4 | 3 | 3 | 1 1/2 | 1.167 | 48.0 |
R3x6 | TR3X6 | 3 | 3 | 1 1/2 | 1.167 | 72.0 |
R4x2 | TR4X2 | 4 | 2 | 1 1/2 | 1.250 | 17.4 |
R4X4 | TR4X4 | 4 | 2 | 1 1/2 | 1.250 | 34.8 |
R4x6 | TR4X6 | 4 | 2 | 1 1/2 | 1.250 | 52.2 |
RA4X2 | 4 | 2 | 2 | 1.750 | 23.6 | |
RA4X4 | 4 | 2 | 2 | 1.750 | 47.2 | |
RA4X6 | 4 | 2 | 2 | 1.750 | 70.8 | |
R5X2 | TR5X2 | 5 | 1 3/4 | 1 1/4 | 1.050 | 12.8 |
R5X4 | TR5X4 | 5 | 1 3/4 | 1 1/4 | 1.050 | 25.6 |
R5x6 | TR5x6 | 5 | 1 3/4 | 1 1/4 | 1.050 | 38.4 |
RA5X2 | 5 | 1 3/4 | 1 1/2 | 1.300 | 16.0 | |
RA5X4 | 5 | 1 3/4 | 1 1/2 | 1.300 | 32.0 | |
RA5x6 | 5 | 1 3/4 | 1 1/2 | 1.300 | 48.0 | |
R6x2 | 6 | 1 1/2 | 1 | .833 | 8.6 | |
R6x4 | 6 | 1 1/2 | 1 | .833 | 17.2 | |
R6x6 | 6 | 1 1/2 | 1 | .833 | 25.8 | |
RA6X2 | TR6X2 | 6 | 1 1/2 | 1 1/2 | 1.333 | 13.8 |
RA6x4 | TR6X4 | 6 | 1 1/2 | 1 1/2 | 1.333 | 27.6 |
RA6x6 | TR6X6 | 6 | 1 1/2 | 1 1/2 | 1.333 | 41.4 |
R8x2 | 8 | 1 1/4 | 3/4 | .625 | 5.2 | |
R8x4 | 8 | 1 1/4 | 3/4 | .625 | 10.4 | |
R8x6 | 8 | 1 1/4 | 3/4 | .625 | 15.6 | |
RA8x2 |
TR8X2 | 8 | 1 1/4 | 1 1/4 | 1.125 | 9.8 |
RA8X4 | TR8x4 | 8 | 1 1/4 | 1 1/4 | 1.125 | 19.6 |
RA8x6 | TR8X6 | 8 | 1 1/4 | 1 1/4 | 1.125 | 29.4 |
R10x2 | 10 | 1 | 5/8 | .525 | 3.6 | |
R10X4 | 10 | 1 | 5/8 | .525 | 7.2 | |
R10x6 | 10 | 1 | 5/8 | .525 | 10.8 | |
RA10x2 | TR10X2 | 10 | 1 | 1 | .900 | 6.0 |
RA10X4 | TR10X4 | 10 | 1 | 1 | .900 | 12.0 |
RA10x6 | TR10X6 | 10 | 1 | 1 | .900 | 18.0 |
R12x2 | 12 | 3/4 | 1/2 | .417 | 2.0 | |
R12X4 | 12 | 3/4 | 1/2 | .417 | 4.0 | |
R12x6 | 12 | 3/4 | 1/2 | .417 | 6.0 | |
RA12x2 | TR12X2 | 12 | 3/4 | 3/4 | .667 | 3.4 |
RA12X4 | TR12X4 | 12 | 3/4 | 3/4 | .667 | 6.8 |
RA12X6 | TR12X6 | 12 | 3/4 | 3/4 | .667 | 10.2 |
R16x2 | 16 | 5/16 | 5/16 | .250 | .50 | |
R16x4 | 16 | 5/16 | 5/16 | .250 | 1.00 | |
R16x6 | 16 | 5/16 | 5/16 | .250 | 1.50 | |
RA16X2 | TR16X2 | 16 | 1/2 | 1/2 | .438 | 1.52 |
RA16X4 | TR16X4 | 16 | 1/2 | 1/2 | .438 | 3.04 |
RA16X6 | TR16X6 | 16 | 1/2 | 1/2 | .438 | 4.56 |
R20x2 | TR20x2 | 20 | 3/8 | 3/8 | .325 | .84 |
R20X4 | TR20X4 | 20 | 3/8 | 3/8 | .325 | 1.68 |
R20x6 | TR20X6 | 20 | 3/8 | 3/8 | .325 | 2.52 |
R24x2 | 24 | 1/4 | 1/4 | .208 | .38 | |
R24X4 | 24 | 1/4 | 1/4 | .208 | •76 | |
R24X6 | 24 | 1/4 | 1/4 | .208 | 1.14 |
Rack is making from low carbon cold drawn steel. It is available in 141/2°and 20°pressure angle in 2, 4, and 6 foot lengths. Allowance is making for cutting and machining. Pinions to run with the rack may be selected from the Spur Gear section of the catalog. Special rack can be supplied in other materials, sizes, and pitches.
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