Setco TYPE LBL6FGD Electric Spindle Slide Unit

This is a Setco TYPE LBL61GD Electric Spindle / Slide Unit.
– Motorized.

LBL-series (including the LBL linear-recirculating ball slides) use recirculating linear bearing units on hardened steel rails for guidance, and when equipped with a lead screw they normally use Setco’s precision ground ballscrew (FG) packages (preloaded ballnut). For the 600-width class (what Setco calls the LBL600) the catalog shows a 63 mm diameter × 12 mm lead ground ballscrew as the standard FG option.

Details & how I read this (so you can confirm):

• Linear guides: the LBL is a linear recirculating ball-bearing slide—the saddle rides on two parallel linear rails with multiple recirculating bearing packs (4 bearing units on the basic saddle). In short: recirculating ball linear rails / bearing packs (the catalog calls them “linear bearing units”).

• Ballscrew options: the catalog identifies a Precision Ground Thread Ballscrew (designation “FG”) with integral preloaded ballnut as the recommended feed for high-accuracy LBL slides. The ballscrew is supported by angular contact thrust bearings in an inboard bearing block.

• Typical screw sizes shown in the catalog table (important because the model code usually encodes width/drive type): for LBL600FG the table shows 63-12 RH (i.e. 63 mm diameter, 12 mm lead, right-hand). Other LBL sizes use smaller or larger diameter/leads (the catalog table lists LBL200 / 300 / 400 / 500 / 600 / 800 values).

Caveat & recommendation:

• I couldn’t find a Setco part sheet that spells out the exact decoding of “LBL61GD” (your BMI listing uses that exact code but the catalog shows the general LBL family and how codes work). Based on Setco’s naming conventions, “LBL61…” typically points to the 600-series (LBL600) slide and the letters after usually indicate drive/option codes (FG = ground ballscrew, M = motor drive, etc.). To be 100% sure about the exact rail profile, bearing pack make, or the screw lead/diameter on your specific unit I recommend either: