This carriage guides linear motion along a matching profile rail through a four-row, full complement ball set, distributing load across all rows without ball-to-ball contact for smoother travel. The narrow, short carriage design of the KWVE15-B-ESC-V1-G3 keeps the mounting footprint compact, with a net mass of 0.107 kg, suiting applications where space along the rail is limited. Accuracy class G3 places this carriage in the standard precision range, adequate for general linear guidance tasks rather than high-precision positioning work. The full complement ball arrangement increases load-carrying rows within a short carriage body, which is useful where axial installation length is restricted but multi-row support is still required. Being a narrow variant, it fits applications where the rail and carriage width must stay minimal while still using four rows of balls for guidance.