Ground Ball Screws – Flanged Nut

Flanged nut ground ball screws pair a precision-ground ball screw shaft with a ball nut that carries an integral mounting flange at one end of the nut body. Standard flanged nuts bolt directly to a moving load or carriage, while offset flange nut variants place the mounting flange off-center from the nut body to provide added clearance in compact or asymmetric machine layouts. As the screw rotates, recirculating balls roll through the mating helical grooves, driving the nut — and the mounted load — smoothly and precisely along the screw.

This collection is available in 4 mm, 6 mm, 8 mm, 10 mm, and 12 mm screw diameters with leads of 1 mm, 2 mm, 5 mm, 6 mm, and 8 mm depending on diameter and nut configuration. Dynamic load ratings range from 420 N to 2,100 N and static load ratings from 570 N to 4,900 N depending on size. Screws are available in Grade 5 and Grade 3 accuracy classes, with Grade 3 providing tighter lead accuracy for applications where positioning precision is critical. These ground ball screws are available in overall lengths from 60 mm to 240 mm, with multiple length options across diameter, lead, and flange configurations to fit a range of travel and mounting requirements.

• Precision-ground ball screw assemblies with standard or offset flanged nuts
• Standard flange mounts directly to a carriage, plate, or moving load
• Offset flange provides added clearance for compact or asymmetric mounting layouts
• Recirculating balls travel through mating helical grooves for smooth, low-friction motion
• Screw diameters: 4 mm, 6 mm, 8 mm, 10 mm, and 12 mm
• Leads: 1 mm, 2 mm, 5 mm, 6 mm, and 8 mm depending on configuration
• Accuracy Grades: Grade 3 and Grade 5
• Grade 3 provides tighter lead accuracy for high-precision positioning
• Grade 5 provides accurate, repeatable positioning for general-purpose automation
• Overall lengths: 60 mm to 240 mm
• Dynamic Load Rating (Ca): 420 N to 2,100 N
• Static Load Rating (C0a): 570 N to 4,900 N

Frequently Asked Questions