Rexroth 109-0943-3801-05 Spare Part

Technical Specifications

Model:109-0943-3801-05

Brand:Rexroth

Product type:Servo motor encoder end cover assembly

Power supply:No power supply required

Control function:Encoder mechanical protection,position sensor mounting,sealing protection

Communication:No digital bus

Mounting:Bolt fixed at servo motor rear end

Operating temperature:-20~80℃

Storage temperature:-25~85℃

Relative humidity:5~95% non-condensing

Max working altitude:2000m

Weight:0.50kg

Dimension:110mm90mm42mm

Certification:CE

Protection class:IP65

System compatibility

109-0943-3801-05 belongs to Rexroth servo motor series,matched with synchronous servo motor and encoder unit.Widely applied in automation assembly,press-fit and material handling workstations.This is a discontinued legacy spare part for equipment maintenance replacement.

Function

109-0943-3801-05 is Rexroth servo motor rear encoder end cover assembly.It provides mechanical protection for the built-in encoder to prevent dust,oil mist and mechanical impact.It fixes encoder component and keeps coaxiality between encoder and motor rotor.It forms sealing structure of motor rear end to protect internal motor winding.It acts as protective and mounting component for servo motor encoder.

Installation

Mount 109-0943-3801-05 on servo motor rear flange,align positioning hole and tighten fixing bolts.Check sealing gasket installation and surface cleanliness before commissioning.

Interface

‑Motor flange mounting hole

‑Encoder accommodating cavity

‑Cable outlet port

‑Seal groove

Circuit feature

High strength cast structure,anti-vibration design,stable protection performance under industrial workshop environment.

Feature

109-0943-3801-05 is obsolete Rexroth spare part.Typical faults:gasket aging,surface crack,thread damage,oil leakage.Inspect housing integrity and sealing ring before replacement.This cover must match corresponding Rexroth servo motor model,direct substitution without inspection is not recommended.

Diagnostic

When housing crack or seal aging occurs,the system may report encoder contamination alarm.

Built‑in function:Encoder mechanical protection,sealing isolation,encoder fixed mounting,used as Rexroth servo motor system spare replacement.

Product Brief

109-0943-3801-05 is Rexroth old servo motor encoder end cover assembly for automation workstation.Confirm servo motor model before ordering.ESD protection required during handling and installation.