PR-15.875-2300-1-67

PR-15.875-2300-1-67 drive chain overview

The PR-15.875-2300-1-67 is a single-row roller drive chain used for mechanical power transmission in helicopter drive systems. It is not a bearing, gear, or shaft element. The chain works as a flexible mechanical link between rotating parts, transmitting torque through engagement with sprockets. In the Mi-8 application, this chain is listed as a tail rotor drive chain, so its length, number of links, and chain specification must match the helicopter documentation.

Torque transmission through PR-15.875-2300-1-67

In operation, the chain transfers rotational movement from one drive element to another. The rollers engage with the sprocket teeth, while the plates and pins carry the tensile load. This type of chain is used where a fixed mechanical connection is required without changing the transmission principle. The chain does not regulate speed and does not compensate for incorrect alignment by itself. Correct tension, sprocket condition, lubrication, and installation length are all part of normal service checks.

Tail rotor drive work with PR-15.875-2300-1-67 installed

The PR-15.875-2300-1-67 operates as part of the helicopter tail rotor drive system. In that position, the chain helps maintain synchronized rotation between transmission elements under changing load. If the drive shows noise, uneven movement, or abnormal wear, the chain is only one part of the inspection. Maintenance should also include sprockets, shafts, bearings, chain tension, lubrication condition, and the surrounding drive housing. A new chain installed on worn sprockets may not give the expected service result.

Mi-8 aircraft application of chain PR-15.875-2300-1-67

The chain is used on Mi-8 family helicopters as a tail rotor drive chain. Open supplier listings identify the item as PR-15.875-2300-1-67 / ПР-15,875-2300-1-67 and describe it for the Mi-8 tail rotor drive. The base chain designation PR-15.875-2300-1 refers to a single-row precision roller chain, while the final “67” identifies the fixed link count used for the aircraft application. For supply, the exact aircraft catalog reference should be checked before ordering.

Identification and ordering checks for PR-15.875-2300-1-67

Before ordering, the chain designation should be compared with the helicopter parts catalog and product documentation. The product may appear as PR-15.875-2300-1-67, PR-15875-2300-1-67, or PR-15.875-2300-1 in shortened form. The link count matters and should not be omitted when ordering the aircraft drive chain. A clear request should include the helicopter type, drive system location, full designation, and documentation requirement. The product is also known under alternative designation ПР-15,875-2300-1-67.

Technical Details

Product Type: Single-row roller drive chain
Function: Mechanical power transmission
Application / Where Used: Tail rotor drive system
System / Installation Area: Helicopter tail rotor drive
Compatible Aircraft / Equipment: Mi-8 family helicopters
Chain Pitch: 15.875 mm
Number of Rows: Single-row
Number of Links: 67
Roller Diameter: Not more than 10.16 mm
Inner Plate Width: Not less than 9.65 mm
Pin Diameter: Not more than 5.08 mm
Breaking Load: 22.2 kN
Weight: Not more than 0.91 kg
Manufacturing Standard: TU 2-5200-02 TU
Technical Documentation: Product documentation per TU 2-5200-02 TU

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In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.