Chain

We focus on basics of manufacturing chains to create a perfect product. Our basics details that a roller chain is used toconnect two sprockets together and transfer torque. Roller chain is made up of a series of inner and outer links connected to form a flexible strand. We build on our knowledge and expertise to further fortify precision and engineering. Eachof the singular parts is finely manufactured with superior quality and durability, right from the exceptional raw material orenhanced processes.

Outside Links consist of two outside plates which are connected by two pins that are pressed into each plate. The pins inthe outside link go through the inside of the hollow bushings when the inner and outer links are assembled. The pins canfreely spin on the inside of the bushings.

Inside Link consists of two inside plates that are connected by two hollow bushings which are pressed into each plate. Theteeth of the sprocket contact the surface of the bushings when the chain is wrapped around a sprocket. Pitch is the distance between the centers of two adjacent pins. Common pitches are 0.25”, known as #25, and 0.375” (#35).

A rider’s safety and comfort being the prime motive helps us manufacture the best product. Samples from the finished manufactured chains undergo rigorous testing in state-of-the-art testing labs for high speed and load to evaluate their performance and maintaining international standards. All the chains are pre-lubricated with special lubricants for ensuring long operational life.

Category:

Manufacturing

We follow a precision-based production process wherein quality is imbibed at every step. Our Quality Consistency Control ensures thatbenchmarks are met at every step of the flow and the product reaching a motorcycle user is nothing less than perfection.
We also manufacture seal-ring Chain that is superior to the competitors’ spare parts. During manufacturing of seal-ring chain, we position a rubberseal ringbetween the inner and the outer plate of the roller chain, which keeps the dust particles out and prevents the grease from flowing out.The
end benefits of such remarkable process are less elongation, silent operation, long life-span and lowlubrication frequency.

Characteristics of RITSUKA Chain / Seal Chain-Ring

Between the inner and outer plate of the roller chain there is a rubber sealing ring, which keeps out thedust particles and stops the grease from flowing out. This way we do not have tore-grease the chain again. So, the advantage of the seal ring chain is less elongation, silent operation, long service life and lower frequency of lubrication.

Chain
RITSUKA Pitch Bush Type Width Pin Roller Plate Thickness Tensile Application Application by cc
Chain No. Dia Length Dia Inner Outer Strength
mm mm mm mm mm mm mm KN
415H 12.700 Curled 4.80 3.96 14.75 7.77 1.5 1.5 16.0 Moped 50-85
420H 12.700 Curled 6.35 3.96 16.60 8.15 1.8 1.8 17.0 Moped 50-85
428H 12.700 Curled 7.85 4.45 18.40 10.16 2.0 2.0 20.6 Street 125-250
520H 15.875 Curled 6.35 5.08 18.80 10.16 2.42 2.42 30 Street 125-250
525H 15.875 Curled 7.95 5.08 22.90 10.16 2.42 2.42 30 Street 125-250
530H 15.875 Curled 9.40 5.08 22.10 11.91 2.42 2.42 30 Street 125-250
O-Ring
RITSUKA Pitch Bush Type Width Pin Roller Plate Thickness Tensile Application Application by cc
Chain No. Dia Length Dia Inner Outer Strength
mm mm mm mm mm mm mm mm
428HO 12.700 Solid 7.85 4.46 21.80 8.51 2.0 2.0 22.0 Street/Of-road 125-200
5200 15.875 Solid 6.35 5.24 20.15 10.16 2.0 2.0 26.5 Street/Of-road/Sports 150-200
5300 15.875 Solid 9.40 5.25 23.40 10.16 2.0 2.0 26.5 Street/Of-road/Sports 150-200
520HO 15.875 Solid 6.35 5.26 22.00 10.16 2.42 2.42 33.0 Street/Of-road/Sports 200-350
525HO 15.875 Solid 7.95 5.27 23.50 10.16 2.42 2.42 33.0 Street/Of-road/Sports 200-350
530HO 15.875 Solid 9.40 5.28 24.95 10.16 2.42 2.42 33.0 Street/Of-road/Sports 200-350
Bush Chain
RITSUKA Pitch Bush diameter With between inner plates b1 min Pin diameter Plate depth Pin length Tensile strength weight per meter
p nom d max b1 min b2 max h2 max L max Q max q
mm mm mm mm mm mm RN Rg/m
25H 6.35 3.3 3.18 2.31 5.9 8.8 5.2 0.17
219H 7.774 4.59 5 4.59 7.4 11.5 9.8 13/1.03
270H 8.5 5 4.75 3.28 8.2 13.1 9.8 0.42

EST04CF-76.353.45.22.416.72.8l0.88.29.10.24EST04CF-76.354.57.252.416.72.8l0.810.311.80.312

Strengthen silent chain
RITSUKA Pitch Number of plates Chain width Pin diameter Plate depth Distance from hole center to tooth top Plate thickness Pin length max Tensile strength weight per meter
Chain No.
P n b1 min D2 min h2 h2 t T L max Q max q
mm mm mm mm mm mm mm mm mm RN RN
EST04CF-5 6.35 2.3 3.15 2.41 6.7 2.8 l 0.8 6.1 5.2 0.165

Testing

The finished chains are thoroughly checked and tested to ensure 100% accurate fitting beforedispatching. Our state-of-the-art testing machinery conducts various tests on each unit of chain toensure perfection:

  • Elongation testing machine
  • Digital & Analog tensile tester
  • Fatigue testing machine
  • Length Accuracy test.
  • Chemical Analysis test lab
  • Metallographic Analysis test machine

Transmission Parts Range

Sprocket

 

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