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Transmission Type | ZA Type (Archimedes) | ||
Number of Turbine Teeth | Z | 72 | |
Turbine Face Modulus | M | 1.6 | |
Dividing Circle Diameter | D | 115.2 | |
Helix Angle | β | 14.25° | |
Pressure Angle | α | 20° | |
Modification Coefficient | x | 0.5 | |
Number of Worm Heads | Z1 | 9 | |
Center Distance | a | 73.8±0.015 | |
Vortex Direction | Right | ||
Accuracy Class | Level 6 | GB10089 | |
Transmission Type | ZA Type (Archimedes) | Transmission Type | ZA Type | |||||
Number of Paired Screw Heads | Z1 | 1 | MtNumber of worm heads | Mt | 1 | |||
Turbine Face Modulus | M | 2.5 | Modulus | Mt | 2.5 | |||
Lead Angle | γ | 2°51 43.2〞 | Lead angle | γ | 3°34'35〞(3.5763°) | |||
Helix Direction | Right | |||||||
Axial Tooth Profile Angle of Worm | α | 20° | Helix direction | Right | ||||
Number of Turbine Teeth | Z2 | 35 | Axial tooth profile angle of screw rod | α | 20° | |||
Center Distance | a | 68.75±0.02 | Number of matched turbine teeth | Z2 | 50 | |||
Turbine Displacement Coefficient | X2 | 0 | Center distance | a | 82.5±0.02 | |||
Accuracy Class | Turbine6e/GB10098 | Addendum diameter | da1 | ∅45 | ||||
Pairing Worm Drawing Number | GY455-5-32 | Dividing circle diameter | d1 | ∅40 | ||||
Turbine Pitch Cumulative Tolerance | Fp | 0.027 | Dividing circle diameter | df1 | ∅34 | |||
Pitch Limit Deviation | fpt | ±0.0085 | ||||||











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