{"id":130,"date":"2026-09-15T09:00:17","date_gmt":"2026-09-15T09:00:17","guid":{"rendered":"https:\/\/largesprocket.top\/product\/25-stainless-steel-sprocket-ansi-25-ss-chain-sprocket\/"},"modified":"2026-09-14T09:13:15","modified_gmt":"2026-09-14T09:13:15","slug":"25-stainless-steel-sprocket-ansi-25-ss-chain-sprocket","status":"publish","type":"product","link":"https:\/\/largesprocket.top\/uk\/product\/25-stainless-steel-sprocket-ansi-25-ss-chain-sprocket\/","title":{"rendered":"\u0417\u0456\u0440\u043e\u0447\u043a\u0430 \u0437 \u043d\u0435\u0440\u0436\u0430\u0432\u0456\u044e\u0447\u043e\u0457 \u0441\u0442\u0430\u043b\u0456 #25 | \u041b\u0430\u043d\u0446\u044e\u0433\u043e\u0432\u0430 \u0437\u0456\u0440\u043e\u0447\u043a\u0430 \u0437 \u043d\u0435\u0440\u0436\u0430\u0432\u0456\u044e\u0447\u043e\u0457 \u0441\u0442\u0430\u043b\u0456 ANSI 25"},"content":{"rendered":"
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\u0425\u0430\u043d\u0447\u0436\u043e\u0443 Ever-Power Sprocket Co., Ltd.<\/p>\n

Precision ANSI 25 stainless steel chain sprockets \u2014 engineered for hygiene-critical and corrosive environments worldwide.<\/p>\n<\/div>\n

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\u041e\u0433\u043b\u044f\u0434 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0443<\/h2>\n

The Hangzhou Ever-Power #25 Stainless Steel Sprocket<\/strong> is machined to exacting ANSI 25 chain standards, delivering pitch-perfect engagement across a full range of bore sizes and tooth counts. Fabricated from 304 or 316 stainless steel depending on application demand, each sprocket resists rust, pitting, and chemical attack \u2014 making it the natural choice wherever carbon steel fails prematurely. Whether installed in a food conveyor system, a pharmaceutical packaging line, or a coastal marine application, this sprocket maintains dimensional integrity and smooth chain travel over extended service cycles. Our in-house CNC turning and hobbing operations hold tooth profile tolerances to within \u00b10.02 mm, ensuring quiet meshing and minimal chain wear from day one.<\/p>\n

\"#25
\n\"Stainless<\/p>\n

<\/p>\n

\u0422\u0435\u0445\u043d\u0456\u0447\u043d\u0456 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/h2>\n

Every #25 stainless steel sprocket we produce is dimensioned directly against ANSI B29.1 standards. Chain pitch is 6.35 mm (1\/4 inch), roller diameter 3.30 mm, and inner width 3.18 mm. Available tooth counts range from 9T through 72T to accommodate speed ratios across virtually every conveyor and drive application. Bore options include standard, finished bore with keyway, and taper-lock hub configurations. All surface contact areas are polished to Ra 1.6 \u00b5m or better to reduce chain link wear and facilitate washdown cleaning in food-grade environments.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n
\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n\u0421\u043f\u0435\u0446\u0438\u0444\u0456\u043a\u0430\u0446\u0456\u044f<\/th>\n<\/tr>\n<\/thead>\n
\u041b\u0430\u043d\u0446\u044e\u0433\u043e\u0432\u0438\u0439 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442<\/td>\nANSI 25<\/td>\n<\/tr>\n
\u041a\u0440\u043e\u043a \u043b\u0430\u043d\u0446\u044e\u0433\u0430<\/td>\n6,35 \u043c\u043c (1\/4 \u0434\u044e\u0439\u043c\u0430)<\/td>\n<\/tr>\n
\u041c\u0430\u0442\u0435\u0440\u0456\u0430\u043b<\/td>\n304 SS \/ 316 SS (\u043d\u0430 \u0432\u0438\u0431\u0456\u0440)<\/td>\n<\/tr>\n
\u0414\u0456\u0430\u043f\u0430\u0437\u043e\u043d \u0437\u0443\u0431\u0456\u0432<\/td>\n9T \u2013 72T<\/td>\n<\/tr>\n
\u0422\u0438\u043f \u043a\u043e\u043d\u0446\u0435\u043d\u0442\u0440\u0430\u0442\u043e\u0440\u0430<\/td>\nPlain bore \/ Finished bore+keyway \/ Taper-lock<\/td>\n<\/tr>\n
\u041e\u0437\u0434\u043e\u0431\u043b\u0435\u043d\u043d\u044f \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u0456<\/td>\nRa \u2264 1.6 \u00b5m (polished)<\/td>\n<\/tr>\n
Hardness<\/td>\nHRC 20\u201325 (heat-treated option)<\/td>\n<\/tr>\n
Cert \/ Compliance<\/td>\nISO 9001:2015, ANSI B29.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Why Stainless Steel Matters for Roller Chain Sprockets<\/h2>\n

Carbon steel sprockets can develop surface rust within weeks when exposed to moisture, cleaning agents, or saline air \u2014 and that rust transfers grit directly into chain joints, accelerating wear exponentially. Stainless steel eliminates that failure mode entirely. Grade 304 provides robust general corrosion resistance covering the majority of industrial washdown chemicals, while 316 adds molybdenum for superior resistance to chlorides found in marine environments and certain food brines. Beyond corrosion, both grades maintain strength at elevated temperatures up to 870 \u00b0C (intermittent), giving engineers confidence in applications with thermal cycling. The low magnetic permeability of austenitic stainless is also valuable in proximity-sensor zones of automated assembly lines.<\/p>\n

304 vs. 316 \u2014 Choosing the Right Grade<\/h3>\n

For standard food conveyor and pharmaceutical packaging applications, 304 SS delivers excellent value: it resists most organic acids, alkalis, and detergents at a lower material cost. Upgrade to 316 SS when the operating environment includes saltwater spray (marine decks, offshore platforms), concentrated chloride cleaning solutions, or continuous exposure to acidic food products such as citrus or vinegar brines. When in doubt, specify 316 \u2014 the cost differential is small relative to the downtime cost of premature failure.<\/p>\n

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

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Manufacturing Process<\/h2>\n

Our production flow combines modern CNC machining with rigorous quality checkpoints to ensure every sprocket ships correctly.<\/p>\n

\n
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\ud83d\udd29<\/div>\n
1. Bar Stock Selection<\/div>\n
Mill-certified SS billet, tested for grade composition.<\/div>\n<\/p><\/div>\n
\n
\u2699\ufe0f<\/div>\n
2. \u0422\u043e\u043a\u0430\u0440\u043d\u0430 \u043e\u0431\u0440\u043e\u0431\u043a\u0430 \u043d\u0430 \u0427\u041f\u0423<\/div>\n
Hub OD and bore machined to H7 tolerance on precision lathes.<\/div>\n<\/p><\/div>\n
\n
\ud83e\uddb7<\/div>\n
3. \u0417\u0443\u0431\u0447\u0430\u0441\u0442\u0435 \u0440\u0456\u0437\u0430\u043d\u043d\u044f<\/div>\n
Tooth profiles cut to ANSI 25 involute form \u00b10.02 mm.<\/div>\n<\/p><\/div>\n
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\ud83d\udd0d<\/div>\n
4. CMM Inspection<\/div>\n
Full-dimensional report generated; 100% pitch diameter verified.<\/div>\n<\/p><\/div>\n
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\u2728<\/div>\n
5. Surface Polish<\/div>\n
Electropolish or mechanical finish to Ra \u2264 1.6 \u00b5m.<\/div>\n<\/p><\/div>\n
\n
\ud83d\udce6<\/div>\n
6. Export Packing<\/div>\n
Individual poly-bag + wooden crate, VCI anti-tarnish film.<\/div>\n<\/p><\/div>\n<\/div>\n

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\u041a\u043b\u044e\u0447\u043e\u0432\u0456 \u0441\u0435\u043a\u0442\u043e\u0440\u0438 \u0437\u0430\u0441\u0442\u043e\u0441\u0443\u0432\u0430\u043d\u043d\u044f<\/h2>\n

The compact pitch of the #25 chain family makes it ideal for precision, lighter-duty drive systems where chain contact zones must stay free of contamination. Typical installations include:<\/p>\n

\n\n\n\n\n\n\n\n\n
\u0421\u0435\u043a\u0442\u043e\u0440<\/th>\nTypical Use<\/th>\nWhy SS Required<\/th>\n<\/tr>\n<\/thead>\n
\u0407\u0436\u0430 \u0442\u0430 \u043d\u0430\u043f\u043e\u0457<\/td>\nBottle conveyor, packaging indexing<\/td>\nUSDA \/ FDA hygiene compliance<\/td>\n<\/tr>\n
\u0424\u0430\u0440\u043c\u0430\u0446\u0435\u0432\u0442\u0438\u0447\u043d\u0430<\/td>\n\u041f\u0435\u0440\u0435\u043d\u0435\u0441\u0435\u043d\u043d\u044f \u0443 \u0431\u043b\u0456\u0441\u0442\u0435\u0440\u043d\u0443 \u0443\u043f\u0430\u043a\u043e\u0432\u043a\u0443, \u043f\u043e\u043a\u0440\u0438\u0442\u0442\u044f \u0442\u0430\u0431\u043b\u0435\u0442\u043e\u043a<\/td>\nNo particle contamination<\/td>\n<\/tr>\n
\u041c\u043e\u0440\u0441\u044c\u043a\u0438\u0439 \/ \u041e\u0444\u0448\u043e\u0440\u043d\u0438\u0439<\/td>\nDeck winch, anchor chain tensioner<\/td>\nSaltwater corrosion prevention<\/td>\n<\/tr>\n
\u0417\u0431\u0456\u0440\u043a\u0430 \u0435\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0456\u043a\u0438<\/td>\nSMT-\u043a\u043e\u043d\u0432\u0435\u0454\u0440, \u043e\u0431\u0440\u043e\u0431\u043a\u0430 \u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0438\u0445 \u043f\u043b\u0430\u0442<\/td>\n\u041d\u0435\u043c\u0430\u0433\u043d\u0456\u0442\u043d\u0438\u0439, \u0431\u0435\u0437 \u0447\u0430\u0441\u0442\u0438\u043d\u043e\u043a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Compatible Parts & Companion Components<\/h2>\n

A complete \u0437\u0456\u0440\u043e\u0447\u043a\u0430 \u0437 \u043d\u0435\u0440\u0436\u0430\u0432\u0456\u044e\u0447\u043e\u0457 \u0441\u0442\u0430\u043b\u0456<\/a> drive system goes beyond the sprocket itself. Hangzhou Ever-Power supplies the full component set to minimize your sourcing effort:<\/p>\n

\"Sprocket<\/p>\n