Belt vs. Direct Drive Pumps<\/p>\n
A \u201cDirect Drive\u201d pump has a hollow shaft, which simply slides onto the drive shaft of a
\nmotor or an engine. The flange on the pump is mounted to the face of the engine. Normal
\ngasoline engine speed is about 3450 RPM. Since the pump is connected directly to the
\nengine shaft, the pump rpm is the same as the engine rpm. Electric motors typically will
\nturn a direct drive pump at 3450 RPM or 1725 RPM. Direct drive pumps allow for a more
\ncompact designed pressure washer.<\/p>\n
Benefits of Direct Drive<\/p>\n
\u2022 Compact Design
\n\u2022 Lower Acquisition Cost<\/p>\n
A \u201cBelt Drive\u201d pump has a pulley mounted to its solid shaft and is driven by one or more
\nbelts that are attached to a pulley on the motor or engine. The pulley system allows these
\npumps to turn at a much lower RPM than a direct drive pump (typically 900-1400 RPM).
\nThe belt drive pump crankcase has a larger oil capacity. This, combined with the lower
\nRPM of the belt drive pump, allows the pump to run much cooler than a direct drive pump.
\nBelts and pulleys also absorb vibration reducing pump fatigue. Because of these factors,
\nmost heavy use pressure washer applications will demand a belt drive pump.<\/p>\n
Benefits of Belt Drive<\/p>\n
\u2022 Vibration Absorption
\n\u2022 Lower RPM
\n\u2022 Lower Operating Temperature
\n\u2022 Longer Life<\/p>\n","protected":false},"excerpt":{"rendered":"
Belt vs. Direct Drive Pumps A \u201cDirect Drive\u201d pump has a hollow shaft, which simply slides onto the drive shaft of a motor or an engine. The flange on the pump is mounted to the face of the engine. Normal gasoline engine speed is about 3450 RPM. Since the pump is connected directly to the … <\/p>\n