Function: Connect two rotating shafts through a chain to transmit power and compensate for slight centering deviations, suitable for scenarios with limited space or requiring flexible transmission.

Core type:
Double row roller chain coupling: consisting of two sprockets and a double row chain, it has a large torque capacity and strong impact resistance.
Universal chain coupling: allows for a large angle deviation (≤ 15 °), suitable for transmission with non parallel axes.

Key parameters:
Torque range: commonly 50-5000 N · m (e.g. model # 35 can support 150 N · m).
Shaft diameter adaptation: The aperture range is 6-150mm, and it supports keyway or clamping fixation.
Allowable deviation: Generally, the radial deviation is ≤ 0.5mm, and the angular deviation is ≤ 3 °.

Key selection points:
Calculate the torque based on the load, and it is recommended to choose a margin of 1.5 times the safety factor.
High temperature environments require the selection of heat-resistant alloy steel materials (applicable temperature ≤ 250 ℃).

Corrosive environment with stainless steel couplings or nickel plating treatment.
Typical applications: pump machine, conveyor belt, injection molding machine shaft connection.

Function: Quickly cut or assemble the pin shaft of the chain, suitable for chain maintenance and length adjustment.

Classification and specifications:
Manual chain cutter: lightweight handheld, suitable for bicycle and motorcycle chains (such as compatible with Shimano HG-71).
Hydraulic chain cutter: used for industrial large-sized chains (such as ANSI 100 or above), with a pressure of up to 10 tons.

Key parameters:
Applicable chain number: indicates the supported chain type (e.g. # 25- # 80).
Top needle diameter: matches the size of the chain roller (commonly 3-15mm).

Usage tips:
Mark the direction of the chain before cutting to avoid reverse installation.
After cutting, check the height of the pin shaft to ensure it is level with the adjacent chain links.

Lubricate the top pin of the chain cutter to extend tool life.
Typical scenarios: Factory production line maintenance, emergency maintenance of logistics equipment.

Function: Guide the trajectory of the chain to prevent detachment, tooth jumping, or lateral swinging.

Structure and Material:
Nylon guide plate: low noise, lightweight, suitable for lightweight conveyor lines (such as food processing machines).
Stainless steel guide rail: high wear resistance, able to withstand high temperatures or heavy loads (such as mining conveyor belts).
Guided by rollers: reduces friction and is suitable for high-speed chains (≥ 2m/s).

Installation method:
Side fixed type: Installed on the side of the sprocket with bolts to limit the lateral displacement of the chain.
Top pressure plate type: Covering the top of the chain to prevent excessive sagging (commonly seen in long-distance transmission).

Key selection points:
Select the inner diameter of the guide groove based on the width of the chain (such as using a 22mm inner diameter guide groove for a 20mm wide chain).
Rubber shock absorbers need to be installed in frequent vibration scenarios.

Application case: Automated three-dimensional warehouse conveyor chain and synchronous transmission of printing machines.

All accessories must strictly match the specifications of the chain/sprocket, such as pitch and chain number.

Wet environment: Choose stainless steel or plated materials for couplings and collars.
Dust environment: The guide device needs to be cleaned regularly to prevent debris accumulation.

Check the tension of the coupling chain every month (sag<2% center distance).
Add silicone grease to the guide every quarter to reduce friction loss.

Roller chains remain a reliable and cost-effective solution for mechanical power transmission, balancing power, speed, and durability based on operational demands.

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