Double Plus Free Flow Chains
- A free flow chain that allows for high speed conveyance at 2.5x the chain's speed thanks to a combination of small and large diameter rollers. Enables quiet accumulation as well.
- We offer a line-up of Snap Cover Chains to prevent parts from falling into the frame.
- Select from either engineering plastic or steel rollers to match your application needs.
- In addition to our standard series, Tsubaki offers Lambda Series, hardened chrome plating, and Stainless Steel Series as well.
List of Model Numbers
※ Click the model No. for detailed information.
※ Please refer to the Selection Guide for features and applications of each specifications.
Double Plus Free Flow Chains
Double Plus Snap Cover Chain
Combination of base chain and rollers
Select from a combination of four base chain and seven roller types (marked with a circle below) to match your application needs.
The same combinations are also available with snap covers.
| Base chain (specifications, material, application) |
Engineering plastic rollers | Urethane lining ※1 | Steel roller | ||||
|---|---|---|---|---|---|---|---|
| VRPA General use type |
VRPB High friction type |
VRPC Electroconductive type |
VRPD Electroconductive high friction type |
VRPUA General use type |
VRPUB High friction type |
VR | |
| Code when ordering | A | B | C | D | UA | UB | None |
| Standard Series (steel) |
○ | ○ | ○ | ○ | ○ | ○ | ○ |
| HCP Series (Hardened chrome plating) For applications where rust is to be avoided, such as clean rooms. |
○ | ○ | ○ | ○ | ○ | ○ | --- |
| SS Series (18-8 SUS, SUS340 equivalent) For applications where magnetism and rust are to be avoided ※2 |
○ | ○ | ○ | ○ | ○ | ○ | --- |
| Lambda Series (lube-free, standard base chain) For application where it is impossible or undesirable to lubricate |
○ | ○ | ○ | ○ | ○ | ○ | --- |
※1. Urethane lining available for RF2030VRP only.
※2. There is slight magnetism from plastic deformation during part processing and assembly. Contact a Tsubaki representative if absolutely no magnetism is required.
Roller (by need)
Select from a combination of four base chain and seven roller types (marked with a circle below) to match your application needs.
The same combinations are also available with snap covers.
| Package | Roller | Need | Lubrication | Atmosphere | |
|---|---|---|---|---|---|
| Large diameter roller ( ) indicates color |
Small diameter roller ( ) indicates color |
||||
| VRPA General use type |
Normal (brown) |
Normal (gray) |
10dB quieter than general use outboard roller chain with plastic rollers | Can be used with no additional lubrication. Lambda Chain requires no additional lubrication during use. |
Uses engineering plastic rollers and so cannot be used in contact with water, even if the base chain is HCP or SS Series. |
| VRPB High friction type |
High friction (cream) |
Quick start-up Low Noise |
|||
※1. Urethane lining available for RF2030VRP only.
※2. There is slight magnetism from plastic deformation during part processing and assembly. Contact a Tsubaki representative if absolutely no magnetism is required.
| Roller | VRPA | VRPB | VRPC | VRPD | VRPUA | VRPUB | VR |
|---|---|---|---|---|---|---|---|
| Code when ordering | A | B | C | D | UA | UB | NO |
| Appearance |  |
 Low Noise |
 |
 Low Noise |
 |
 |
 |