BOSTON GEAR 20 Diametral Cast Iron Change Gears, 14.5 Degree Pressure Angle
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| Style | Model | Diametral Pitch | Pitch Dia. | Hub Dia. | Type | Pressure Angle | Bore Dia. | Face Width | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | GA52B | 20 | 2.6" | 1.38" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €161.10 | |
| B | GA105B | 20 | 5 1/4" | 1.69" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €232.01 | |
| C | GA96B | 20 | 4.8" | 1.69" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €218.13 | |
| D | GA69B | 20 | 3.45" | 1.56" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €186.30 | |
| E | GA82B | 20 | 4.1" | 1.69" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €204.55 | |
| F | GA87B | 20 | 4.35" | 1.69" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €209.24 | |
| G | GA91B | 20 | 4.55" | 1.69" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €216.48 | |
| H | GA100B | 20 | 5" | 1.69" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €225.84 | |
| I | GA51B | 20" | 2.55" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €156.27 | |
| J | GA73B | 20" | 3.65" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €184.80 | |
| K | GA65B | 20" | 3 1/4" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €178.63 | |
| L | GA66B | 20" | 3.3" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €178.63 | |
| M | GA67B | 20" | 3.35" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €186.30 | |
| N | GA70B | 20" | 3 1/2" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €184.80 | |
| O | GA71B | 20" | 3.55" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €190.23 | |
| P | GA72B | 20" | 3 3/5" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €184.80 | |
| Q | GA79B | 20" | 3.95" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €197.62 | |
| R | GA74B | 20" | 3.7" | 1 14/25" | - | 14.5° | 5/8" | 3/8" | Cast Iron | €197.62 | |
| S | GA75B | 20" | 3 3/4" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €192.78 | |
| T | GA63B | 20" | 3.15" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €174.39 | |
| U | GA81B | 20" | 4.05" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €204.55 | |
| V | GA83B | 20" | 4.15" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €204.55 | |
| W | GA86B | 20" | 4.3" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €209.24 | |
| X | GA99B | 20" | 4.95" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €223.26 | |
| Y | GA109B | 20" | 5.45" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €268.52 | |
| Z | GA115B | 20" | 5 3/4" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €251.48 | |
| A1 | GA118B | 20" | 5.9" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €246.03 | |
| B1 | GA64B | 20" | 3 1/5" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €178.63 | |
| C1 | GA60B | 20" | 3" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €171.54 | |
| D1 | GA62B | 20" | 3.1" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €174.39 | |
| E1 | GA94B | 20" | 4.7" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €218.61 | |
| F1 | GA53B | 20" | 2.65" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €161.10 | |
| G1 | GA54B | 20" | 2.7" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €164.12 | |
| H1 | GA68B | 20" | 3 2/5" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €186.30 | |
| I1 | GA76B | 20" | 3 4/5" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €197.62 | |
| J1 | GA77B | 20" | 3.85" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €197.62 | |
| K1 | GA78B | 20" | 3.9" | 1 14/25" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €197.62 | |
| L1 | GA80B | 20" | 4" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €199.75 | |
| M1 | GA84B | 20" | 4 1/5" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €209.24 | |
| N1 | GA90B | 20" | 4 1/2" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €211.05 | |
| O1 | GA95B | 20" | 4 3/4" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €223.26 | |
| P1 | GA61B | 20" | 3.05" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €174.39 | |
| Q1 | GA97B | 20" | 4.85" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €223.26 | |
| R1 | GA98B | 20" | 4.9" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €218.13 | |
| S1 | GA104B | 20" | 5 1/5" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €237.75 | |
| T1 | GA106B | 20" | 5.3" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €237.75 | |
| U1 | GA55B | 20" | 2 3/4" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €161.27 | |
| V1 | GA56B | 20" | 2 4/5" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €161.27 | |
| W1 | GA57B | 20" | 2.85" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €170.16 | |
| X1 | GA58B | 20" | 2.9" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €170.16 | |
| Y1 | GA59B | 20" | 2.95" | 1.38" | Plain | 14.5° | 5/8" | 3/8" | Cast Iron | €170.16 | |
| Z1 | GA120B | 20" | 6" | 1.69" | Web With Lightning Hole | 14.5° | 5/8" | 3/8" | Cast Iron | €259.78 |



















































