PowerAC Trapezoidal Assembly 904 RA w/Bronze Nut
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Product Specifications
Trapezoidal Lead Screw
(Screw)Product Info
- Screw Code:
- 904 RA
- Screw Material:
- 4140 Series
- Thread Direction:
- RH
(Screw)Details
- Diameter:
- 26
- Lead:
- 6
- Starts:
- 1
- Pitch [mm]:
- 6
- Lead Accuracy +/- [μm/25mm]:
- 6.25
- Thread Code:
- 904
- End Code for Types 1,2,3,5 [* Journals may show tracings of the thread]:
- 17
- End Code for Type 4 [* Journals may show tracings of the thread]:
- 10
(Screw)Dimensions
- A - Root Diameter Mmmimum [mm]:
- 17.84
- D - Nominal Rod Diameter:
- 26
(Screw)Part Numbers
- 1800 mm Part Number:
- 15904
- 3600 mm Part Number:
- 16904
- 900 mm Part Number:
- 14904
(Screw)Weight
- Weight Per Meter [kg]:
- 3.2
Trapezoidal Lead Nut
(Nut)Product Info
- Part Number:
- 20904
- Thread Direction:
- RH
- Type:
- Bronze
(Nut)Details
- Diameter:
- 26
- Lead [mm]:
- 6
- Starts:
- 1
- Pitch [mm]:
- 6
- Lash (Maximum Axial in) [mm]:
- 0.30
- Nominal Rod Diameter:
- 26
- Thread Code:
- 904
(Nut)Dimensions
- B [mm]:
- 45.0
- C [mm]:
- 45.0
- E [mm]:
- 15.00
- F (n) Dia. [mm]:
- (4) 7.00
- F BCD [mm]:
- 70.00
- G [mm]:
- 16.0
- H [mm]:
- 85.0
- J [mm]:
- M40x15
(Nut)Forces and Torques
- Torque to Raise 1 kN [Nm]:
- 2.469
(Nut)Flange Part Numbers
- Flange Part Number:
- 72004
(Nut)Weight
- Flange Weight [kg]:
- 0.54
- Nut Weight [g]:
- 440
(Nut)Performance Specifications
- Efficiency [%]:
- 39
- Lead Accuracy +/- [μm/25mm]:
- 6.25
- Dynamic Load Capacity [N]:
- 23304
- Static Load Capacity [N]:
- 74573
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.
Bronze Inch Acme
Special high tensile bronze is selected for our smooth running, anti-wedging bronze nuts.- Material: Nook Bronze
- Tensile Yield: 50,000 psi
- Tensile Ultimate: 65,000 psi
- Hardness: HB75
- Dynamic co-efficient of friction: 0.125 with Nook Lubricant