Check the listing for details. NEW THOMSON 512P45D1D STANDARD PROFILE 45mm LINEAR RAIL ROLLER CARRIAGE BLOCK. Condition: New – Open box. Listed at 349.99 USD. This auction is for (1) Thomson 512P55D1D, Roller Carriage Linear Slide Block for 55mm Standard Profile Linear Guide Rail, 55mm Wide. Specifications Measurement standard: Metric Load capacity: 222000 N Nominal rail size: 55 mm Overall height: 80 mm Accuracy class: Precision Grade Overall length: 205.5 mm Block type: Narrow Long Block Overall width: 100 mm Preload: Approximately 0.03 C Operating temperature range: -40 to 80º C Ball options: Corrosion Resistant Finish/coating: Hard-Chrome Plated Bearing material: Chrome Steel Series: 500 I have a few of these for sale, they retail for around $1,300 ea. new so save a ton on these! They are all in excellent new condition. Wisconsin residents must pay 5.5% sales tax, unless proof of exemption is provided. Thanks, and good luck bidding. NEW THOMSON 512P45D1D STANDARD PROFILE 55mm LINEAR RAIL ROLLER CARRIAGE BLOCK Track Page Views With Auctiva's FREE Counter