This carriage runs on a linear guideway system, transferring load through a four-row recirculating ball arrangement that supports forces from multiple directions. The KWVE20-B-SNL design is built in a narrow, low, and long carriage body, giving a compact cross-section while maintaining an extended contact length along the rail. Net mass is 0.403 kg, and the unit is manufactured to accuracy class G3. The four-row ball arrangement allows the carriage to take up combined loads and moments acting from different directions, which suits applications requiring stable guidance along a single axis. Accuracy class G3 defines the dimensional and running tolerances of the carriage relative to the rail, so mounting and alignment should follow this class when paired with a matching rail. The narrow and low profile of the KWVE20-B-SNL carriage keeps the installation envelope small while preserving the four-row ball configuration for consistent load distribution along the guideway.