Heavy-duty cranked-link transmission chains are offset-sidebar transmission chains designed for demanding mechanical drive applications. Their cranked-link plate geometry allows the chain to form a robust roller-and-pin assembly while providing the dimensional structure required for heavy-duty power transmission.
The supplied technical drawing shows two views of the chain:
An upper assembly view showing the cranked side plates, rollers, pins, bushes, and key dimensions
A lower chain-plate/profile view showing the pitch relationship and chain plate height
The supplied parameter table lists 13 chain numbers across standard and special-size series, including 2010, 2512, 2814, 3315, 3618, 4020, 4824, WG781, WG103, WG140, WG9525, WB7900, and WB7938.
All exact numerical values in this page are transcribed from the supplied technical image. Public sources are used only for general standard and application background.
Key Features
Cranked-Link Plate Design
The offset or cranked-link plate form is designed for heavy-duty chain-drive construction. The upper drawing shows the characteristic stepped plate profile around the rollers and pins.
Heavy-Duty Transmission Configuration
The table includes large pitch options from 63.50 mm to 152.40 mm, together with corresponding roller, pin, plate, tensile-strength, and weight values. These dimensions are intended for equipment matching and engineering review.
Roller and Pin Assembly
The technical drawing identifies the main roller and pin dimensions, including d1, d2, b1, L, and T. These dimensions should be checked against the sprocket, shaft, chain guide, and existing chain assembly.
Multiple Chain Number Options
The supplied table covers 13 chain numbers. This allows users to compare the required pitch, roller diameter, pin diameter, chain width, tensile-strength field, and weight per meter for different transmission requirements.
Suitable for Heavy Industrial Drives
Cranked-link transmission chains are typically considered for heavy-duty mechanical drives and engineered chain systems where high load capacity, dimensional matching, and reliable sprocket engagement are important.
Final selection must be based on the complete drive calculation, operating conditions, sprocket design, safety factor, lubrication, and maintenance requirements.
Technical Specification Table
Chain No.
Pitch P (mm)
d2 max (mm)
b1 min (mm)
d1 max (mm)
L max (mm)
T max (mm)
U.T.S (kN)
q (kg/m)
2010
63.50
15.90
38.10
31.75
90.70
7.90
262.00
15.00
2512
77.90
19.08
39.60
41.28
103.40
9.70
378.00
18.00
2814
88.90
22.25
38.10
44.45
117.60
12.70
516.00
25.00
3315
103.45
23.85
49.30
45.24
134.90
14.20
596.00
27.00
3618
114.30
27.97
52.30
57.15
141.20
14.20
814.00
38.00
4020
127.00
31.78
69.90
63.50
167.80
15.70
1,054.00
52.00
4824
152.40
38.13
76.20
76.20
187.50
19.00
1,521.00
68.00
WG781
78.18
17.00
38.10
33.00
97.00
10.00
313.60
16.00
WG103
103.20
23.00
49.20
46.00
125.50
13.00
539.00
26.00
WG140
140.00
35.00
80.00
65.00
187.00
20.00
1,176.00
59.20
WG9525
95.25
23.00
39.00
45.00
124.00
16.00
635.00
22.25
WB7900
79.00
18.50
39.00
31.50
93.50
9.50
381.00
12.28
WB7938
79.38
19.50
41.20
40.00
100.00
9.50
509.00
18.70
Dimension Notes
P — chain pitch
d2 max — maximum pin diameter
b1 min — minimum inner-plate width
d1 max — maximum roller diameter
L max — maximum pin length
T max — maximum plate-thickness field shown in the source table
U.T.S — ultimate tensile strength field shown in the source table
q — weight per meter
The U.T.S values are minimum ultimate tensile-strength specifications shown in the source table. They are not allowable working-load values. Working load must be calculated separately using the full drive design and an appropriate safety factor.
Technical Drawing
The supplied technical drawing has been horizontally corrected and redrawn as a separate engineering image. It retains:
The blue canvas mark
The Chinese title 重载传动用弯板链
The English title Heavy-duty cranked-link transmission chain
The numeric chain series in the supplied table cover pitches from 63.50 mm to 152.40 mm. The listed U.T.S values range from 262.00 kN for 2010 to 1,521.00 kN for 4824.
These values should be used for comparison against the required chain size and drive arrangement, not as a substitute for a complete transmission calculation.
WG Series
The listed WG models are:
WG781
WG103
WG140
WG9525
The WG series in the supplied table covers pitch values from 78.18 mm to 140.00 mm and U.T.S values from 313.60 kN to 1,176.00 kN.
WB Series
The listed WB models are:
WB7900
WB7938
The table identifies pitch values of 79.00 mm and 79.38 mm, with U.T.S values of 381.00 kN and 509.00 kN, respectively.
Typical Applications
Heavy-duty cranked-link transmission chains are generally considered for engineered power-transmission systems and industrial machinery where a larger chain size and offset-sidebar construction are required.
Typical application areas may include:
Heavy industrial drives
Steel and metal-processing machinery
Cement and mineral-handling equipment
Sugar and agricultural processing machinery
Bulk material handling systems
Heavy conveyors and elevators
Industrial transfer and drive equipment
Machinery requiring offset-sidebar chain geometry
Custom engineering chain assemblies
Some public industry materials also describe cranked-link or related heavy-duty engineering chains for conveyors, stackers, sorters, trimmer saws, and other industrial equipment. The exact suitability of any chain number must be verified against the equipment design.
OEM, ODM, and Replacement Support
Technical matching can be based on:
Chain number
Pitch
d1 roller diameter
d2 pin diameter
b1 inner-plate width
L pin length
T plate-thickness field
Chain length
Sprocket drawing
Existing chain sample
Drive layout
Operating load and speed
For replacement applications, provide a chain sample or clear dimensional drawings. Pitch alone is not sufficient to confirm interchangeability.
Material grade, heat treatment, surface treatment, coating, corrosion resistance, fatigue life, wear life, and working-load rating are not specified in the supplied image. These details should be confirmed separately before being included in a final purchase specification.
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