Product
High-load ball screws
High-load ball screws
Compared to standard ball screws, high-load (HL) ball screws are characterized by more than twice higher load capacity and rigidity, achieved by changed radius of the thread profile. In the case of long ball screw shafts, this profile can be ground just in the nut.
Short ones (up to three times the length of the nut) always have this profile also on the shaft. High load ball screws have lower efficiency and are designed for slow-running applications.
The HL ball screws are usually produced as non-preloaded (single nuts with backlash). In all applications, it is necessary to perform shaft buckling analysis and the nuts must be checked for their flange width in relation to axial load.
Characteristics:
Example of designation: K80×20 – 4/AP HL/3 (ball screw with diameter 80 mm and pitch 20 mm, 4 working threads, single nut with
flange, high-load design, flange type 3)
High-load ball screws : www.ks-kurim.cz/en/ball-screws/high-load-ball-screws/
Compared to standard ball screws, high-load (HL) ball screws are characterized by more than twice higher load capacity and rigidity, achieved by changed radius of the thread profile. In the case of long ball screw shafts, this profile can be ground just in the nut.
Short ones (up to three times the length of the nut) always have this profile also on the shaft. High load ball screws have lower efficiency and are designed for slow-running applications.
The HL ball screws are usually produced as non-preloaded (single nuts with backlash). In all applications, it is necessary to perform shaft buckling analysis and the nuts must be checked for their flange width in relation to axial load.
Characteristics:
- Precise ball screws for high axial load and long life
- Thread accuracy of the ball screws complies with the IT1 precision class (DIN 69051) with inter-thread deviation less than 2 μm
- Shaft ends are ground in the tolerance classes 4 to 6
- Recommended shaft diameters are 63, 80, 100 and 125 mm
- Recommended pitch 20 mm
- Used material with minimum strength Rm=720MPa
- Ball screws, surface-induction hardened to 58-60HRC
- Ball nuts are designed for high loads
- Transmission efficiency approximately 0.93 – 0.95%
- Shaft buckling analysis is necessary
- Lubricants for high loads must be used. Recommended lubricants are: Klüber Microlube GL 261, OKS 400, Optimol Longtime PD 2, Lubcon Turmogrease PHS 1002 (all other greases suitable for high loads).
- Working temperature up to 90°C
- Injection moulding machines
- Transportation mechanisms
- Lifting equipment
- Replacement for hydraulic cylinders
Example of designation: K80×20 – 4/AP HL/3 (ball screw with diameter 80 mm and pitch 20 mm, 4 working threads, single nut with
flange, high-load design, flange type 3)
High-load ball screws : www.ks-kurim.cz/en/ball-screws/high-load-ball-screws/
Price of the Product
Price not indicated
