This carriage guides linear motion along a profiled rail through four rows of recirculating balls, giving it the ability to carry loads from multiple directions at a single contact point. Design KWVE45-B-S is the narrow carriage version, built for installations where housing width is limited. Net mass is 2.76 kg, and the unit is manufactured to accuracy class G3. The four-row ball arrangement provides balanced load distribution across the carriage, supporting stable guidance under combined radial and lateral forces. Accuracy class G3 makes this carriage suitable for applications requiring standard positioning precision rather than high-precision alignment. The narrow body design allows mounting in compact spaces without affecting the load-carrying arrangement of the recirculating ball system.