This carriage guides a linear rail through four rows of recirculating balls, giving load support and travel accuracy for the KWVE20 system. The low carriage design (B-N variant) results in a compact height, and net mass is 0.381 kg. Accuracy class G3 defines the running and parallelism tolerances of the carriage on the rail. The four-row ball arrangement allows the carriage to take up loads and moments from multiple directions, distributing forces across the recirculating ball tracks. Accuracy class G3 makes it suitable for applications where moderate positioning precision is required rather than the tightest tolerance grades, and the low-profile carriage body suits installations where reduced overall height is needed along the guide rail.