Products Power Transmission Products

  • Plastic Top Chain

TNU Series

Curved type TN Series chain. Conveyor chain using a steel chain base.

Allowable load is 2x that of TTUP Series

  • Standard Series
  • NP Series
  • AS Series
TNU Series

1. Features

  • Has a high allowable load. (2x that of TTUP Series.)
  • Just the top plate can be replaced.
  • Chain specifications that can be used in corrosive environments are also available.
TNU picture of Structure

Base chain specifications and features

Standard Series
Base chain: Steel
The main dimensions are the same as with roller chains, but the shape of the pin ends is different. Be aware that the chain is slightly weaker than an RS drive chain.
*Base chain requires lubrication.
NP Series
Base chain: Nickel plated steel
Nickel plated for an attractive appearance and slight corrosion protection.
*Base chain requires lubrication.
AS Series
Base chain: Pins, bushes, and rollers use precipitation hardened stainless steel, while the plates use 18-8 stainless steel
Can be used in environments requiring even stronger corrosion resistance.
*Base chain requires lubrication.

2. Structure


TNU Series Top Chain uses an RS60-CU equivalent base chain and snap-on top plates.
The legs of the top plates snap onto the outer links of the base chain.

3. Model Numbering Example

Base chain and connecting links

TNU - C - NP - JL
(1) (2) (3) (4)
  1. (1) Model
  2. (2) Base chain
  3. (3) Base chain specifications: Blank = Standard series, NP, AS
  4. (4) Use "CL" when connecting links are needed

Top plates

TNU 826 P
(1) (2) (3)
  1. (1) Model
  2. (2) Top plate width: mm (ex.: 826 = 82.6mm)
  3. (3) Top plate specifications: P = Standard series