SY 08B-2 AP Aqua-Proof BS Duplex Roller Chain, 1/2 in Pitch, 10 ft Box

SY BS (ISO 606) duplex roller chain from Sugiyama Chain Co., Ltd. AP (Aqua-Proof) series chain pairs corrosion resistance with the strength of Sugiyama carbon steel roller chain.

Made in Japan by Sugiyama Chain Co., Ltd. AIMS Industrial supplies it in boxed lengths of 10 ft (3.05 m). This listing covers 4 sizes (08B to 16B), and the table below carries Sugiyama's published dimensions and strength figures for every size.

Where this product is used

• Seawater environments
• Washdown equipment
• Stacking cranes
• Car parking structures
• Outdoor applications

Features

• Dual-layer coating applied to every component before assembly
• Same strength as standard carbon steel Sugiyama roller chain
• Salt-water spray tested to JIS Z 2371 / ISO 9227 (336 hours) in Sugiyama's brochure, outperforming zinc and nickel plated chain
• Complies with the RoHS Directive
• Made in Japan by Sugiyama Chain Co., Ltd
• Dimensions and strength figures taken from Sugiyama's published tables

Key specifications

Available sizes

Selecting the right option

For BS chain the number is the pitch in sixteenths of an inch: 08B is 8/16 in (1/2 in), 12B is 12/16 in (3/4 in), 16B is 1 in. The figure after the dash is the number of strands.

Choose Aqua-Proof where carbon steel chain would rust but you still need carbon steel strength. For food contact, or anywhere coating flakes or wear dust could reach food, use stainless steel chain instead, as Sugiyama recommends.

ASA and BS chain of the same pitch are not the same: for example 12.7 mm pitch ASA 40 has a 7.95 mm roller width and 7.92 mm roller, while 12.7 mm pitch BS 08B has a 7.75 mm roller width and 8.51 mm roller (Sugiyama SBR tables). Match the chain to the sprocket standard.

Fitting and use

Tensile strength is the load at which the chain breaks in a single pull and is not a working load. Sugiyama's rule of thumb is to never load roller chain above 50% of its ultimate tensile strength, even for one cycle, and to apply the multiple-strand factor to multiple-strand chain.

Sugiyama's guide: manual lubrication below 15 m/min chain speed, drip lubrication from 15 to 30 m/min, and oil bath from 30 m/min.

Do not use Aqua-Proof chain where it can contact food directly, or where coating flakes or wear dust could contaminate food. Use stainless steel chain for those jobs.

Where a single-pitch offset link is used, Sugiyama's published load figures allow for a 35% reduction in fatigue strength.

Chain drives should be guarded. Lock out machine power before removing, installing or servicing chain, wear eye protection when driving or grinding pins, avoid welding or plating assembled chain, and never repair damaged chain by replacing only some of its parts.

Sugiyama's Aqua-Proof brochure shows AP chain outperforming zinc and nickel plated chain in a salt-water spray test to JIS Z 2371 / ISO 9227 over 336 hours.

Related products

Matching connecting links: SY Aqua-Proof BS Roller Chain Connecting Link Duplex 08B-16B. Matching offset links: SY Aqua-Proof BS Roller Chain Offset Link (Half Link) Duplex 08B-16B.