ANSI #50-5 Roller Chain | 5-Strand 5/8" Pitch Roller Chain

Model: ANSI 50-5 Roller Chain

Item specifics

Material: Carbon Steel

Color: Natural

Surface Treatment: Shot Peening/Heat Treatment/Plating/Lubrication

Accuracy: High precision roller chain

Quality: Durable roller chain

Interchangeability: Directly interchangeable with other brands

Review

Description

About ANSI #50-5 Roller Chains

CTS® ANSI #50-5 roller chain is a five-strand roller chain built to ANSI/ASME B29.1 on a 5/8" (15.875 mm) pitch. It is interchangeable with other ANSI-certified #50-5 chains and standard five-row #50 sprockets. Our roller chain components are heat-treated, shot-peened, and hardened, plus a factory-applied premium lubricant.

For a quotation or other information on ANSI roller chains, please contact us, and we will be happy to help you.

Quality Assurance:
ISO9001: 2015 and GB/T24001-2016 / ISO14001: 2015.

ANSI #50-5 Roller Chain Technical Data

#50-5 Roller Chain Dimensions

Pitch(P): 15.875 mm
Roller diameter(d1): 10.16 mm
Width between inner plates(b1): 9.40 mm
Pin diameter(d2): 5.08 mm
Pin length(L): 93.2 mm
Pin length(Lc): 94.7 mm
Inner plate depth(h2): 15.09 mm
Plate thickness(T): 2.03 mm
Transverse pitch(Pt): 18.11 mm
Tensile strength: 111.0/24970 kN/lbf
Weight per meter: 5.37 kg/m

ANSI #50 Multiple Strand Roller Chain dimension chart

When a 4-Strand #50 Is Not Enough

The five strands share the load, so the working envelope grows in a straight line with the number of rows. Compare the multi-strand options at the same 15.875 mm pitch:

Chain Size	Strand	Min.tensile	Pin Length L	Weight
ANSI #50-4	4	88.80 kN/19,976 lbf	75.1 mm	4.30 kg/m
ANSI #50-5	5	111.0 kN/24,970 lbf	93.2 mm	5.37 kg/m
ANSI #50-6	6	133.2 kN/29,964 lbf	111.3 mm	6.43 kg/m
ANSI #50-8	8	approx. 178 kN	approx. 147 mm	approx. 8.6 kg/m

Each additional strand adds about 22.2 kN of tensile force and 18.11 mm of pin length (the transverse pitch). Moving from #50-4 to #50-5 lifts capacity by about 25% while the pitch, sprocket diameter, and chain speed stay the same — you gain torque in the same footprint rather than moving to a bigger pitch and bigger sprockets.

FAQ

What is the difference between ANSI #50-4 and #50-5?

One extra row. The #50-5 has five strands instead of four, raising the minimum tensile strength from 88.8 kN to 111.0 kN (about 25%) and the pin length from 75.1 mm to 93.2 mm, at the same 15.875 mm pitch, roller size, and sprocket diameter.

Can CTS supply #50-5 with a cottered joint?

Yes. Cottered joints are available on multi-strand chain and are often used on five- and six-strand drives to simplify assembly and field repair. Confirm the joint style when you order.