Planetary roller screws SR | Trục vít con lăn SR Ewellix được sử dụng rộng rãi trong nhiều ứng dụng khác nhau, yêu cầu độ chính xác cao và tải trọng lớn.
Planetary roller screws operating without recirculation provide the high level of robustness, load carrying capacity, speed and acceleration, service life and reliability for ultimate driving performance.
Đặc tính trục vít con lăn hành tinh SR
Satellite rollers without recirculation
Evenly spaced, guided and synchronized rollers
Absence of miniature parts
Nominal diameters from 8 to 120 mm
Long leads up to 42 mm
Small leads down to 2 mm
Shaft length up to 8 000 mm
Maximum n d0 = 160 000
Acceleration up to 12 000 rad/s2 for standard SR screws, and can be higher for special variants
High dynamic load carrying capacity up to 1 131 kN for SR assortment
High static load carrying capacity up to 4 038 kN for SR assortment
High axial stiffness, further increased with a preloaded version
Roller retention for nut and shaft disassembly
Optional support bearings
Three standard versions are available: SR with axial play
BR without backlash (for d0 ≤ 64 mm )
PR with preloaded split nut (for d0 ≤ 64 mm )
On request, the SR assortment can be delivered with maximized load rating (maximum number of rollers) for sizes d0 ≤ 80 mm
Flexible design and manufacturing equipment
Ứng dụng
• Presses for plastic injection moulding and blow moulding
• Electro–mechanical presses
• Broaching machines
• Large machine tools
• Car assembly lines (spot welding, gluing, riveting, etc.)
• Factory automation
• Off–highway vehicles
• Oil & gas
• Aerospace
• Steel industry
• Test benches
Các loại trục vít con lăn hành tinh SR
SRC/BRC planetary roller screws with cylindrical nut
SRF/BRF/SRP/BRP planetary roller screws with flanged nut
PRU preloaded planetary roller screws with cylindrical nut
PRK preloaded planetary roller screws with flanged nut
