{"id":178,"date":"2026-09-21T03:41:26","date_gmt":"2026-09-21T03:41:26","guid":{"rendered":"https:\/\/largesprocket.top\/product\/5-8-inch-pitch-stainless-sprocket-more-load-than-40-simpler-than-going-duplex\/"},"modified":"2026-09-21T06:28:52","modified_gmt":"2026-09-21T06:28:52","slug":"5-8-inch-pitch-stainless-sprocket-more-load-than-40-simpler-than-going-duplex","status":"publish","type":"product","link":"https:\/\/largesprocket.top\/fr\/produit\/5-8-inch-pitch-stainless-sprocket-more-load-than-40-simpler-than-going-duplex\/","title":{"rendered":"5\/8-Inch Pitch Stainless Sprocket \u2014 More Load Than #40, Simpler Than Going Duplex"},"content":{"rendered":"
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Hangzhou Ever-Power Sprocket Co., Ltd.<\/p>\n

When a #40 SS drive is running at its limit, engineers face two routes: add a second strand (duplex), or move up to #50 pitch. Each has a different cost and complexity profile. This page explains how to choose between them.<\/p>\n<\/div>\n

Two Routes When Your #40 Drive Is Overloaded<\/h2>\n

An ANSI 40 single-strand drive can handle approximately 14 kN maximum chain tension under moderate-speed operation. When process changes push the drive beyond that ceiling \u2014 higher throughput, heavier product, faster conveyor speed \u2014 the chain elongates faster than the replacement schedule allows, and sprocket tooth tips begin to round under the excess load. At that point, the engineering team has a genuine decision to make: convert to 40-2 duplex (adding a second strand of #40 chain, roughly doubling power capacity) or upgrade to #50 pitch (larger chain, single strand, ~60% more capacity). Neither answer is universally correct. The choice depends on shaft centre distance flexibility, available sprocket hub width, and how much capacity headroom the drive needs going forward.<\/p>\n

\"ANSI<\/p>\n

Single-Strand #50 vs. Duplex #40 \u2014 The Engineering Trade-Offs<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Factor<\/th>\n#50 Single Strand<\/th>\n#40 Duplex (40-2)<\/th>\n<\/tr>\n<\/thead>\n
Capacity vs #40 single<\/td>\n~60% more tension<\/td>\n~90% more tension<\/td>\n<\/tr>\n
Sprocket width<\/td>\nSingle row \u2014 narrower<\/td>\nDouble row \u2014 wider hub needed<\/td>\n<\/tr>\n
Centre-to-centre change<\/td>\nMay require adjustment<\/td>\nUsually stays same<\/td>\n<\/tr>\n
Drive alignment sensitivity<\/td>\nStandard<\/td>\nMore critical \u2014 both strands must load equally<\/td>\n<\/tr>\n
Chain cost<\/td>\n~1.3\u00d7 #40 single<\/td>\n~2\u00d7 #40 single<\/td>\n<\/tr>\n
Best when<\/td>\n60% uplift is enough; hub width is limited<\/td>\nNear-double capacity needed; centres fixed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Sp\u00e9cifications techniques<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Param\u00e8tre<\/th>\nValeur<\/th>\n<\/tr>\n<\/thead>\n
Num\u00e9ro de cha\u00eene<\/td>\nANSI 50<\/td>\n<\/tr>\n
Pas<\/td>\n15,875 mm (5\/8\u2033)<\/td>\n<\/tr>\n
Diam\u00e8tre du rouleau<\/td>\n10,16 mm<\/td>\n<\/tr>\n
Largeur int\u00e9rieure<\/td>\n9.53 mm<\/td>\n<\/tr>\n
Mat\u00e9riel<\/td>\nAcier inoxydable 304 \/ Acier inoxydable 316<\/td>\n<\/tr>\n
Gamme de dents<\/td>\n9T \u2013 80T<\/td>\n<\/tr>\n
Conformit\u00e9<\/td>\nANSI B29.1, ISO 9001:2015<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Drive Sizing: Speed Ratio and Tooth Count Selection for #50<\/h2>\n

Good drive design for #50 pitch follows the same principles as any roller chain drive, with a few specific recommendations that extend service life in SS food-grade applications:<\/p>\n

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Driver Tooth Count<\/div>\n

Minimum 17T for smooth chain engagement. 19T or 21T (odd counts) gives even wear distribution across all chain links \u2014 recommended for long-interval food applications.<\/p>\n<\/div>\n

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Speed Ratio<\/div>\n

Keep single-stage ratio at or below 7:1. Above this, a two-stage reduction is more efficient \u2014 it reduces the load on the slow-speed chain strand and extends both chain and sprocket<\/a> life.<\/p>\n<\/div>\n

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Centre Distance<\/div>\n

30\u201350 pitches of centre distance is the practical optimum. This gives adequate chain wrap on the driver (\u2265 120\u00b0) and a chain sag that self-tensions without over-stressing the bearings.<\/p>\n<\/div>\n<\/div>\n

\"Ever-Power<\/p>\n

Components for a Complete #50 SS Drive<\/h2>\n

\"ANSI<\/p>\n

Whether you are building a new #50 drive or upgrading from a #40 system, we supply the complete component set so every part of your pignon en acier inoxydable<\/a> drive is grade-consistent:<\/p>\n