Straight sidebar welded steel chain is an engineered welded chain designed for demanding conveying and material-handling systems. The straight-sidebar profile shown in the supplied technical drawing provides a regular chain path with welded sidebars, rollers, pins, and bush/roller components for industrial equipment integration.
The supplied drawing includes:
Upper chain-plate plan view
Lower chain assembly view
Pitch P
Chain height H
Overall side dimension X
Bearing or inner dimension A
Roller diameter d1
Pin diameter d2
Plate thickness T
The supplied table includes four chain models:
WRC-78
WRC-82
WRC-124
WRC-132
All exact dimensions and numerical values in this page are transcribed from the supplied image. Public references are used only for general application and selection background.
Key Features
Straight Sidebar Profile
The straight-sidebar construction provides a continuous side-plate profile for chain routing and equipment integration. The drawing shows a regular upper plan view and a lower assembly view with rollers, pins, sidebars, and centerlines.
Welded Steel Chain Construction
The welded chain format is intended for engineered conveying systems where the chain must work with sprockets, guides, shafts, product supports, or other machine components. The exact construction and service configuration must be confirmed against the equipment drawing.
Four Engineering Chain Sizes
The supplied table covers four models with pitches from 66.27 mm to 153.67 mm:
d1 max — maximum roller diameter field shown in the source table
d2 max — maximum pin diameter field shown in the source table
X min — minimum X dimension field shown in the source table
A max — maximum A dimension field shown in the source table
H max — maximum chain height field shown in the source table
T max — maximum plate-thickness field shown in the source table
U.T.S. — ultimate tensile strength field shown in the source table
A.T.S. — allowable tensile strength field shown in the source table
U.T.S. and A.T.S. are source table fields. They should not be treated as a complete working-load calculation without checking safety factor, chain speed, shock loading, fatigue, sprocket selection, lubrication, and the actual machine design.
Typical Applications
Straight sidebar welded steel chains are generally considered for heavy-duty conveying and industrial material-handling applications such as:
Wood-processing conveyors
Pulp and paper mill equipment
Plywood, OSB, MDF, and board-mill systems
Bulk material handling
Bucket elevators
Drag conveyors
Heavy industrial transfer systems
Abrasive-material conveying
High-shock-load conveying equipment
Engineered mill-chain applications
Public industry references describe welded steel chains as suitable for demanding forestry, mill, bulk-handling, and conveyor environments. Actual suitability of a specific WRC model must be confirmed against the equipment load, chain speed, shock conditions, environment, and maintenance plan.
Chain Model Selection
Select the Pitch
The supplied models use the following pitches:
66.27 mm — WRC-78
78.10 mm — WRC-82
101.60 mm — WRC-124
153.67 mm — WRC-132
Pitch must match the sprocket or wheel tooth spacing and the complete conveyor layout.
Check Roller and Pin Dimensions
Confirm:
Roller diameter d1
Pin diameter d2
Chain height H
A dimension
X dimension
Plate thickness T
These dimensions affect sprocket engagement, guide clearance, chain alignment, and equipment integration.
Review Operating Conditions
Provide the following information before final selection:
Conveyed material
Material weight
Conveyor speed
Conveyor length
Center distance
Sprocket or wheel information
Start-stop frequency
Impact or shock loading
Dust, moisture, abrasive particles, or chemicals
Lubrication method
Operating temperature
Number of chain strands
Confirm Working Load Separately
The source table includes U.T.S. and A.T.S. values. These fields should be reviewed with the complete drive calculation rather than used as a standalone working-load guarantee.
Straight Sidebar Welded Steel Chain Features for Engineering Review
Regular Chain Routing
The straight-sidebar form provides a consistent outer profile for chain guides and equipment layout. Confirm the side clearance and sprocket width against the selected model.
Welded Chain for Engineered Conveyors
The chain is presented as an engineered welded steel chain for industrial conveyor and bulk-handling systems. The final chain construction, treatment, attachment details, and service rating must be confirmed in the purchase specification.
Large-Pitch Options
The WRC-78 through WRC-132 models provide multiple pitch options for equipment with different chain spacing and load requirements.
Replacement Matching
For replacement applications, pitch alone is not sufficient. Send the existing chain sample, sprocket or wheel drawing, pin and roller measurements, and operating conditions for technical matching.
OEM / ODM and Custom Chain Support
Custom engineering review can be based on:
Chain model
Pitch
Roller diameter
Pin diameter
Chain height
Plate thickness
X and A dimensions
Chain length
Sprocket or wheel drawing
Conveyor layout
Packaging and delivery requirements
Material grade, heat treatment, surface treatment, coating, corrosion resistance, wear life, service life, working-load rating, and certification are not specified in the supplied image. Confirm these items separately before adding them to a purchase specification.
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