PowerAC Trapezoidal Assembly 903 RS w/Plastic Nut
Trapezoidal Lead Screw Assembly, Tr 20 x 4, Stainless, RH, Plastic Nut
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Product Specifications
Product Specifications
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Product Specifications
Trapezoidal Lead Screw
(Screw)Product Info
- Screw Code:
- 903 RS
- Screw Material:
- 300 Series Stainless
- Thread Direction:
- RH
(Screw)Details
- Diameter:
- 20
- Lead:
- 4
- Starts:
- 1
- Pitch [mm]:
- 4
- Lead Accuracy +/- [μm/25mm]:
- 6.25
- Thread Code:
- 903
- End Code for Types 1,2,3,5 [* Journals may show tracings of the thread]:
- 12
- End Code for Type 4 [* Journals may show tracings of the thread]:
- 8
(Screw)Dimensions
- A - Root Diameter Mmmimum [mm]:
- 14.90
- D - Nominal Rod Diameter:
- 20
(Screw)Part Numbers
- 1800 mm Part Number:
- 55903
- 3600 mm Part Number:
- 56903
- 900 mm Part Number:
- 54903
(Screw)Weight
- Weight Per Meter [kg]:
- 2
Trapezoidal Lead Nut
(Nut)Product Info
- Part Number:
- 30903
- Thread Direction:
- RH
- Type:
- Plastic
(Nut)Details
- Diameter:
- 20
- Lead [mm]:
- 4
- Starts:
- 1
- Pitch [mm]:
- 4
- Lash (Maximum Axial in) [mm]:
- 0.24
- Nominal Rod Diameter:
- 20
- Thread Code:
- 903
(Nut)Dimensions
- B [mm]:
- 32.0
- C [mm]:
- 34.0
- E [mm]:
- 13.00
- F (n) Dia. [mm]:
- (4) 7.00
- F BCD [mm]:
- 60.00
- G [mm]:
- 14.0
- H [mm]:
- 75.0
- J [mm]:
- M30x1.5
(Nut)Forces and Torques
- Torque to Raise 1 kN [Nm]:
- 1.580
(Nut)Flange Part Numbers
- Flange Part Number:
- 72003
(Nut)Weight
- Flange Weight [kg]:
- 0.39
- Nut Weight [g]:
- 31
(Nut)Performance Specifications
- Efficiency [%]:
- 40
- Lead Accuracy +/- [μm/25mm]:
- 6.25
- Dynamic Load Capacity [N]:
- 6895
- Static Load Capacity [N]:
- 6895
More Details
Nook Industries Offers the largest selections of rolled amce screw sizes in the industry. Rolled thread screws are cost effective and are stocked for quick delivery.
Similar in construction and materials to PowerAc™ Inch Acme Screws and Nuts, the Trapezoidal thread form screws and nuts include a centralizing (C) thread form to prevent wedging and binding. When compared to general-purpose thread forms (G), centralizing threads are manufactured with tighter tolerances and reduced clearance on the major diameter.
Plastic Inch Acme
The high strength and inherent lubricity of plastic Acme and Trapezoidal nut material can result in product life that can equal or exceed conventional nut materials.- Tensile Strength @70°F: 8,000 psi
- Compressive Strength @70°F: 16,000 psi
- PV Limit: 2,700 lubricated
- Co-efficient of friction: 0.10 lubricated