T-1218 2-Axis Bore Target

T-1218 2-Axis Bore Target


Large-bore target for long-distance bore applications such as stern tube and shaft bearing alignments on large ships. Has large measuring range with its 20x20 mm super-linear sensor. Up to 1 micron resolution and <1% measurement error.


  • Stern tube bores
  • Long-distance applications where the L-708LD Laser is used
  • General alignment of large bores where a big misalignment is expected
  • Cam/Crankshaft/Cylinder Bore Alignment/Inspection
  • Turbine Bores


  • Straightness checks on bores from 5 inches (127 mm) to 40 inches (1 m)
  • 0.001 mm resolution and < 1% linearity when used with R-1307 Readout.
  • PSD size of 20x20 mm.
  • PSD centered to measuring feet to within .0005” (0.012 mm)
  • Supports L-708LD Long-Distance laser as well as L-705/L-706 Bore Lasers and L-700 Spindle Laser.
  • Use the T-1225L Large-Bore 3-Leg Adapter for most applications from 4 inches (101.6 mm) to 40 inches (1 m)



2.9 lbs. (1.3 kg)


440C Stainless Steel


.00002 inches (.005 mm)

Target Cell Error:

.00002 inches (.005 mm)

PSD Size and Type:

.78 x .78 inches (20 x 20 mm) 2-axis, non see-through

Measuring Range
(Standard Lasers):

±.295 inches (±7.5 mm) in both axes

Measuring Range
(Long Distance Laser):

± 205 inches (± 5 mm) in both axes

Cord Dimensions:

Target to connector: 10 feet (3.05 meters). Removable cable with Lemo connector


Lemo 9-pin metal - located on front and back of target

Mounting Dimension:

2.9993 inches to 2.9998 inches (79.182 mm to 79.195 mm) outer diameter

PSD Concentricity:

PSD concentric to mounting surface to within .0005 inches (0.0127 mm) TIR (electrical center to mechanical center)


Diemensions T-1218 2-Axis Bore Target