THK BLR Series Large Lead Rotary Ball Screw

The THK BLR Series is a nut-rotating precision ball screw. It uses an integrated structure combining a ball screw nut and support bearing into a single unit, along with an end-cap design for smooth ball circulation.

This series features a large lead, which supports fast feed and efficient motion conversion, and it doesn’t require preload, keeping installation straightforward. It’s built as a rotary nut type, making it well suited for precision positioning applications.

The BLR Series has a DN value of 70,000 and is available in screw shaft diameters of 16mm, 20mm, 25mm, 32mm, 36mm, 40mm, and 50mm.