BW / BWY / XW / XWY Cycloidal Pinwheel Reducers

MANUFACTURER DOCUMENTATION

Overview

The BW, BWY, XW and XWY product page describes Xinghai’s cycloidal pinwheel reducer using a low-tooth-count planetary principle, distinct from its FF helical gearmotor. The maker allows continuous service and operation in either direction. Its listed nominal input speed is 1,500 rpm; above 18.5 kW input power, the page recommends a six-pole motor around 960 rpm. The source also calls for a horizontal operating position and normally less than 15 degrees inclination unless lubrication and sealing are addressed. Single-stage reduction can reach 87 with average efficiency above 92 percent; a two-stage assembly can reach a higher ratio. These are family descriptions requiring an exact BW/XW size selection.

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Published series specifications

Series ranges describe the product family. They are not interchangeable operating points.

Transmission

Cycloidal pinwheel

Nominal input speed

1,500 rpm

High-power input recommendation

960 rpm six-pole motor above 18.5 kW

Horizontal installation tilt

Normally <15°

Single-stage ratio

Up to 87

Average single-stage efficiency

>92% (maker statement)

Operating direction

Forward or reverse; continuous duty

Model configuration table

The source page provides a series overview rather than a complete model/ratio rating table. Use the manufacturer link above for selection drawings and confirm the precise operating point before ordering.

Before you specify this gearbox

General-purpose cycloidal reducers and precision RV reducers serve different requirements. Confirm the series, torsional stiffness and allowable moment loads.

• Confirm continuous, peak and emergency-stop load limits separately.
• Match the motor flange, shaft, mounting orientation and lubrication requirements.
• Request the current drawing revision and selection calculation from the manufacturer.

Related products

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BXJC-C Precision Cycloidal Reducer

Tailong identifies the BXJC-C series, including BXJ22C, for robot and manipulator transmission. Its product page supplies the manufacturer image; request the exact ratio and load table for the selected size.

Named model

BXJ22C

Transmission

Precision planetary / cycloidal pinwheel

Series

BXJC-C

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WANSHSIN

WRA Precision RV Reducer

A precision RV reducer family for robotic transmission. Catalog rows associate individual frames and ratios with rated load, overload torque and rigidity; precision grades need confirmation at order stage.

Rated load

50–7,500 Nm across the listed family

Precision grades

P0–P2; no numeric backlash assumed

Architecture

Precision RV / cycloidal reduction

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