• Tsubaki RS25-3 G8 Drive Chain Roller Chain (Triple Strand)
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Tsubaki RS25-3 G8 Drive Chain Roller Chain (Triple Strand)

Tsubaki RS25-3 G8 Drive Chain Roller Chain (Triple Strand)

Tsubaki G8 General-Purpose Drive Chain — ISO 'A' series roller chain for wide-range power transmission from low-speed heavy-load to high-speed applications.

Key features

  • Anti-friction lubricant sealed in sintered bushings achieves 1.2x wear life vs G7-EX
  • Transmission efficiency improved 33% over previous generation
  • Available in single, double, and triple strand; multiple connecting link types
  • RS35 and smaller: same dimensions as conventional chain
  • Compatible with standard ISO/JIS sprockets

Specifications

Series RS25-3
Pitch 6.35 mm
Roller Diameter 3.18 mm
Inner Width 3.18 mm
Strands 3
Standard ISO 'A' / JIS B 1801
Generation G8
Lubrication Anti-Friction Sealed (Sintered Bushing)
Wear Life 1.2x vs G7-EX
Efficiency Gain +33% vs Previous Gen
Application General power transmission, conveyor, industrial machinery
RS25-3-RP-U Series: RS25-3 | Pitch: 6.35 mm | Roller Diameter: 3.18 mm | Inner Width: 3.18 mm | Strands: 3 | Standard: ISO 'A' / JIS B 1801 | Generation: G8 | Lubrication: Anti-Friction Sealed (Sintered Bushing) | Wear Life: 1.2x vs G7-EX | Efficiency Gain: +33% vs Previous Gen | Application: General power transmission, conveyor, industrial machinery | Link Type: Standard (Unit Link)
RS25-3-JL Series: RS25-3 | Pitch: 6.35 mm | Roller Diameter: 3.18 mm | Inner Width: 3.18 mm | Strands: 3 | Standard: ISO 'A' / JIS B 1801 | Generation: G8 | Lubrication: Anti-Friction Sealed (Sintered Bushing) | Wear Life: 1.2x vs G7-EX | Efficiency Gain: +33% vs Previous Gen | Application: General power transmission, conveyor, industrial machinery | Link Type: Connecting Link (Joint Link)
RS25-3-2POL Series: RS25-3 | Pitch: 6.35 mm | Roller Diameter: 3.18 mm | Inner Width: 3.18 mm | Strands: 3 | Standard: ISO 'A' / JIS B 1801 | Generation: G8 | Lubrication: Anti-Friction Sealed (Sintered Bushing) | Wear Life: 1.2x vs G7-EX | Efficiency Gain: +33% vs Previous Gen | Application: General power transmission, conveyor, industrial machinery | Link Type: Press-fit — 2POL
Roller ChainsTsubaki
3 product codes available in this family
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Tsubaki RS25-3 G8 Drive Chain Roller Chain (Triple Strand)

Brand Tsubaki·Roller Chains

Available part numbers (3)

RS25-3-RP-U, RS25-3-JL, RS25-3-2POL

How to order

Send the Tsubaki part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
RS25-3-RP-USeries: RS25-3 | Pitch: 6.35 mm | Roller Diameter: 3.18 mm | Inner Width: 3.18 mm | Strands: 3 | Standard: ISO 'A' / JIS B 1801 | Generation: G8 | Lubrication: Anti-Friction Sealed (Sintered Bushing) | Wear Life: 1.2x vs G7-EX | Efficiency Gain: +33% vs Previous Gen | Application: General power transmission, conveyor, industrial machinery | Link Type: Standard (Unit Link)
RS25-3-JLSeries: RS25-3 | Pitch: 6.35 mm | Roller Diameter: 3.18 mm | Inner Width: 3.18 mm | Strands: 3 | Standard: ISO 'A' / JIS B 1801 | Generation: G8 | Lubrication: Anti-Friction Sealed (Sintered Bushing) | Wear Life: 1.2x vs G7-EX | Efficiency Gain: +33% vs Previous Gen | Application: General power transmission, conveyor, industrial machinery | Link Type: Connecting Link (Joint Link)
RS25-3-2POLSeries: RS25-3 | Pitch: 6.35 mm | Roller Diameter: 3.18 mm | Inner Width: 3.18 mm | Strands: 3 | Standard: ISO 'A' / JIS B 1801 | Generation: G8 | Lubrication: Anti-Friction Sealed (Sintered Bushing) | Wear Life: 1.2x vs G7-EX | Efficiency Gain: +33% vs Previous Gen | Application: General power transmission, conveyor, industrial machinery | Link Type: Press-fit — 2POL

Need a different model, or a part not listed here? Send us your parts list →

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