# BLA Series

> Ball screw actuators for low-to-medium load terminal guides. Ball screw drive – converts rotary motion to linear motion with minimal backlash

**Last updated:** 2026-10-06

**Source:** https://r2r.tech/products/actuators/bla

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> Ball screw actuators for low-to-medium load terminal guides.

## Specifications

| Specification | BLA-015-0600-TG | BLA-030-0600-TG | BLA-067-0600-TG |
| ------------- | --------------- | --------------- | --------------- |
| Thrust (Nominal) | 150 lbf | 300 lbf | 650 lbf nominal; rated maximum 3,000 N (675 lbf) |
| Stroke Length | 6 in (150 mm) | 6 in (150 mm) | 6 in (150 mm) |
| Drive Voltage | 24 VDC | 24 VDC | 24/48 VDC |
| Motor Current | 4 A | 4 A | 6 A |
| Power Source | SCU6x MD | SCU6x MD | SCU6x MxD |
| Motor Type | Brushless Bi-polar Stepper, 1.8° resolution |
| Actuator Type | Ball Screw |
| Mounting | Pivot / Rod Eye / Clevis |

#### Load capacity by bearing type

| Model | Nominal thrust | μ 0.06 rolling bearings (standard) | μ 0.1 rolling bearings, with margin | μ 0.25 sliding bearings |
| ----- | -------------- | ---------------------------------- | ----------------------------------- | ----------------------- |
| BLA-015 | 150 lbf | 2,500 lb (1,133 kg) | 1,500 lb (680 kg) | 600 lb (272 kg) |
| BLA-030 | 300 lbf | 5,000 lb (2,267 kg) | 3,000 lb (1,360 kg) | 1,200 lb (544 kg) |
| BLA-067 | 650 lbf | 10,833 lb (4,913 kg) | 6,500 lb (2,948 kg) | 2,600 lb (1,179 kg) |

*Load = nominal thrust ÷ friction coefficient μ. Horizontal travel at constant speed, no web tension; acceleration and breakaway not included. μ 0.06 and 0.1 are conservative design coefficients for rolling bearings (0.1 adds margin for performance and service life); 0.25 is for sliding bearings. Size a real application with the [actuator sizing calculator](https://r2r.tech/resources/actuator-sizing-calculator).*

## Features

- Ball screw drive – converts rotary motion to linear motion with minimal backlash
- SCU6x only – BLA-015 and BLA-030 use the SCU6x MD driver. BLA-067 uses the SCU6x MxD for its higher current. BLA is not supported on the SCU5 with MC QD drivers
- Front and rear spherical bearing mounting – accommodates misalignment and angular deflection, reducing side loading on the ball screw
- BLA-015-0600-TG – 150 lbf thrust, 6 in stroke, 4 A at 24 VDC for light terminal guides and slitter carriages
- BLA-030-0600-TG – 300 lbf thrust, 6 in stroke, 4 A at 24 VDC for medium-load coating heads and shifting stands
- BLA-067-0600-TG – 650 lbf nominal thrust, rated maximum 3,000 N (675 lbf), 6 in stroke, 6 A at 24 VDC or 48 VDC, for terminal guide applications needing the highest BLA thrust rating
- Load capacity by bearing type – nominal thrust ÷ friction coefficient; see the load table under Specifications and the actuator sizing calculator

## Benefits

- Sized for low-to-medium loads – the BLA Series covers slitter carriages, coating heads, and light shifting stands, with 150, 300, and 650 lbf nominal models. The BLA-067's rated maximum is 3,000 N (675 lbf)
- Load sized to your bearings – on rolling bearings at μ 0.1, about 1,500 lb (BLA-015), 3,000 lb (BLA-030) or 6,500 lb (BLA-067); see the load table
- No custom engineering – three standard models cover the most common low-to-medium load terminal guide applications
- Floating-mount replacement – pivot, rod eye, and clevis mounts fit floating (TG) structures when replacing a pneumatic cylinder or worn actuator. Confirm the structure is floating (TG) first. A fixed (RF) structure needs LHS-RF, and the wrong mount type damages the actuator

## Applications

- Slitter carriages – lateral positioning for slitter knife assemblies
- Coating heads – alignment of coating applicators across the web
- Light shifting stands – lateral shifting of light rolls and stands
- Terminal guides – low-to-medium load positioning for winders and rewinders

## Documentation

**3D Model (STEP):** [BLA-015-0600-TG or BLA-030-0600-TG](https://r2r.tech/documentation/3d-models/bla-015-0600-tg-or-bla-030-0600-tg.md)

**Additional documentation:**
- [BLA-067-0600-TG](https://r2r.tech/documentation/2d-drawings/bla-067-0600-tg.md)
- [BLA-0xx-0600-TG 2D Drawing](https://r2r.tech/documentation/2d-drawings/bla-0xx-0600-tg-2d-drawing.md)
- [CASE STUDY - Pneumo-Hydraulic Web Guide Upgrade](https://r2r.tech/documentation/case-studies/case-study-pneumo-hydraulic-web-guide-upgrade.md)
- [CASE STUDY: Web Guide Upgrade Kit for Aging Web Guides](https://r2r.tech/documentation/case-studies/case-study-web-guide-upgrade-kit-aging-web-guides.md)
- [CASE STUDY: Web Guide Upgrade of Pneumo-hydraulic Web Guide for a Slitting Operation](https://r2r.tech/documentation/case-studies/case-study-web-guide-upgrade-pneumo-hydraulic-web-guide-slitting.md)
- [LHS-005-0125-LP: 2D Drawing (dxf)](https://r2r.tech/documentation/2d-drawings/lhs-005-0125-lp-2d-drawing-dxf.md)
- [LHS-005-0400-LP: 2D Drawing (dxf)](https://r2r.tech/documentation/2d-drawings/lhs-005-0400-lp-2d-drawing-dxf.md)
- [LHS-005-0xxx-LP: 2D Drawing (pdf)](https://r2r.tech/documentation/2d-drawings/lhs-005-0xxx-lp-2d-drawing-pdf.md)
- [LHS-015-0150-WG: 2D Drawing (pdf)](https://r2r.tech/documentation/2d-drawings/lhs-015-0150-wg-2d-drawing-pdf.md)
- [LHS-020-0xxx-RF: 2D Drawing (dxf)](https://r2r.tech/documentation/2d-drawings/lhs-020-0xxx-rf-2d-drawing-dxf.md)
- [LHS-020-0xxx-RF: 2D Drawing (pdf)](https://r2r.tech/documentation/2d-drawings/lhs-020-0xxx-rf-2d-drawing-pdf.md)
- [LHS-030-xxxx-RF: 2D Drawing (pdf)](https://r2r.tech/documentation/2d-drawings/lhs-030-xxxx-rf-2d-drawing-pdf.md)
- [Power Supply Regen Clamp Wiring](https://r2r.tech/documentation/wiring-diagrams/power-supply-regen-clamp-wiring.md)
- [RLA-050-0600-TG: 2D Drawing (pdf)](https://r2r.tech/documentation/2d-drawings/rla-050-0600-tg-2d-drawing-pdf.md)
- [Roll-2-Roll® Actuators Brochure](https://r2r.tech/documentation/brochures/roll-2-rollr-actuators-brochure.md)
- [Roll-2-Roll® Upgrade Kit: Product Brochure](https://r2r.tech/documentation/brochures/roll-2-rollr-upgrade-kit-product-brochure.md)
- [Roll-2-Roll® Web Guide Upgrade Kit Product Brochure](https://r2r.tech/documentation/brochures/roll-2-rollr-web-guide-upgrade-kit-product-brochure.md)
- [SCU5 MD Wiring with MC QD 1141/1140/1240 + Web Guide Actuator](https://r2r.tech/documentation/wiring-diagrams/scu5-md-wiring-mc-qd-114111401240-web-guide-actuator.md)
- [SCU5 MD Wiring with MC QD 1180/1181/1211/1230/1231/1260 + Regen Clamp + Unwind/Rewind Actuator](https://r2r.tech/documentation/wiring-diagrams/scu5-md-wiring-mc-qd-118011811211123012311260-regen-clamp.md)
- [SCU5 MD Wiring with MC QD 1180/1181/1211/1230/1231/1260 + Web Guide Actuator](https://r2r.tech/documentation/wiring-diagrams/scu5-md-wiring-mc-qd-118011811211123012311260-web-guide-actuator.md)
- [SCU6x MxD Wiring Diagram with Unwind/Rewind (Small Load)](https://r2r.tech/documentation/wiring-diagrams/scu6x-mxd-wiring-diagram-unwindrewind-small-load.md)
- [Servo Center Servo Installation](https://r2r.tech/documentation/manuals/servo-center-servo-installation.md)
- [Unwind/Rewind Guides Brochure](https://r2r.tech/documentation/brochures/unwindrewind-guides-brochure.md)
- [Unwind/Rewind Installation Checklist](https://r2r.tech/documentation/manuals/unwindrewind-installation-checklist.md)

**Tags:** Actuator, BLA, Actuators

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies designs and manufactures patented fiber-optic web position sensors and advanced web guiding controllers — the precision measurement and control core of modern roll-to-roll manufacturing. Spun out of Oklahoma State University's Web Handling Research Center and trusted by Fortune 500 medical, battery, and nonwovens manufacturers, our patented sensors work without recalibration, with 0.0635 mm resolution and ±0.127 mm repeatability at line speeds up to 760 m/min — typical customer outcomes are 50%+ less downtime and payback under six months. Headquartered in Stillwater, Oklahoma, our team of PhDs, controls engineers, and industry veterans extends the sensor + controller core into complete web guide systems including stepper-motor-based linear actuators (RLA, BLA, LHS).

- Website: https://r2r.tech
- Phone: +1 (888) 290-3215
- Email: sales@r2r.tech