Piñones de cadena de rodillos #180 | Placa A, Cubo B, Cubo C – De 11 a 60 dientes, SAE 1045

Piñones de cadena de rodillos 2

Corea Ever-Power #180 roller chain sprockets are engineered for heavy industrial drives — 2.25-inch pitch ANSI B29.1, SAE 1045 steel, three hub types covering 11 to 60 teeth and outside diameters from 9.010″ up to 44.280″. The heaviest C-hub 60-tooth unit weighs 489 lb — these are the sprockets used in steel mills, mining conveyors, heavy press lines, and large-scale cadena transportadora systems operating across Korean heavy industry.

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#180 Chain Sprockets — Heavy Industrial Drive Series

#180 roller chain sits at the upper end of the standard ANSI B29.1 chain range. With a pitch of 2.25 inches (57.15 mm) and a minimum tensile strength of approximately 160,000 lbf (71 tonnes) for a single strand, #180 is not a general-purpose chain. It is specified for drives where nothing smaller is mechanically adequate — large conveyor drives in steel plants, bucket elevator main drives in cement and aggregate processing, heavy press loading systems, and primary conveyor drives in underground mining operations.

Piñones de cadena de rodillos 2

Three hub styles are available: A-plate for minimum axial space, B-hub for moderate-torque main shaft drives (11–28 teeth), and C-hub with dual-face hub projection for the largest tooth counts (30–60 teeth) where maximum shaft engagement length is required to transmit the substantial torques involved. SAE 1045 steel throughout — the higher carbon content versus the common 1018 baseline provides the tensile strength and surface hardenability these demanding applications require.

  • ⚙Chain: ANSI #180 — pitch 2.25″ (57.15 mm), roller dia 1.406″, inner width 1.406″
  • ⚙A-plate: 11–60 teeth, OD 9.010″–44.280″, weight 14.0–505.0 lb
  • ⚙B-hub: 11–28 teeth; C-hub: 30–60 teeth — for highest shaft engagement torque
  • ⚙Material: SAE 1045 steel; heat-treated hardened teeth available; ANSI B29.1

#180 chain sprocket heavy duty industrial drive system

#180 A-Plate Sprocket Specifications

A-plate #180 sprockets have no hub. The column "(D)" is the maximum bore diameter for the plain plate body — the largest hole that can be machined through the flat disc while maintaining structural integrity. A-plate 180A sprockets are used in installations where axial space is critically limited, or where the sprocket will be welded to a shaft flange or structural member rather than mounted on a standard cylindrical shaft.

Tamaño del piñón Dientes Tipo Outside Dia. (in) Diámetro del cilindro Max Bore (D) Weight (lb)
180A11 11 A 9.010 1-1/2″ 5-1/2″ 14.0
180A12 12 A 9.750 1-1/2″ 6″ 16.0
180A13 13 A 10.480 1-1/2″ 6-3/4″ 20.0
180A14 14 A 11.210 1-1/2″ 7″ 24.0
180A15 15 A 11.930 1-1/2″ 7″ 28.0
180A16 16 A 12.660 1-1/2″ 7″ 32.0
180A17 17 A 13.390 1-1/2″ 7″ 37.0
180A18 18 A 14.110 1-1/2″ 7″ 43.0
180A19 19 A 14.830 1-1/2″ 7-1/2″ 47.0
180A20 20 A 15.560 1-1/2″ 7-1/2″ 53.0
180A21 21 A 16.280 1-1/2″ 7-1/2″ 57.0
180A22 22 A 17.000 1-1/2″ 7-1/2″ 62.0
180A23 23 A 17.720 1-1/2″ 7-1/2″ 69.0
180A24 24 A 18.440 1-1/2″ 7-1/2″ 75.0
180A25 25 A 19.160 1-1/2″ 7-1/2″ 80.0
180A28 28 A 21.320 1-1/2″ 8″ 93.0
180A30 30 A 22.760 1-1/2″ 8-1/2″ 108.0
180A35 35 A 26.350 1-1/2″ 8-1/2″ 145.0
180A40 40 A 29.940 1-1/2″ 8-1/2″ 190.0
180A45 45 A 33.530 1-1/2″ 9″ 284.0
180A54 54 A 39.980 1-1/2″ 9″ 420.0
180A60 60 A 44.280 1-1/2″ 9-1/2″ 505.0

#180 B-Hub Sprocket Specifications

B-hub #180 sprockets carry a single hub projection on one face, providing extended shaft engagement for key-and-set-screw retention. This is the standard specification for most main drive shaft positions in industrial #180 chain drives. The hub diameter and length-through-bore values determine whether the sprocket will clear adjacent bearings and machine frames — confirm these against your installation drawings before ordering.

Tamaño Dientes OD (in) Diámetro del cilindro Max Bore Hub Dia. Longitud a través del orificio Weight (lb)
180B11 11 9.010 1-1/2″ 3-5/8″ 5-1/2″ 3″ 29.0
180B12 12 9.750 1-1/2″ 4″ 6″ 3″ 32.0
180B13 13 10.480 1-1/2″ 4-5/8″ 6-3/4″ 3-1/8″ 40.0
180B14 14 11.210 1-1/2″ 5-1/4″ 7″ 3-1/8″ 44.0
180B15 15 11.930 1-1/2″ 5-1/4″ 7″ 3-1/8″ 50.0
180B16 16 12.660 1-1/2″ 5-1/4″ 7″ 3-1/8″ 54.0
180B17 17 13.390 1-1/2″ 5-1/4″ 7″ 3-1/4″ 60.0
180B18 18 14.110 1-1/2″ 5-3/8″ 7-1/2″ 3-1/4″ 68.0
180B19 19 14.830 1-1/2″ 5-3/8″ 7-1/2″ 3-3/8″ 74.0
180B20 20 15.560 1-1/2″ 5-3/8″ 7-1/2″ 3-3/8″ 81.0
180B21 21 16.280 1-1/2″ 5-3/8″ 7-1/2″ 3-3/8″ 88.0
180B22 22 17.000 1-1/2″ 5-3/8″ 7-1/2″ 3-3/8″ 95.0
180B24 24 18.440 1-1/2″ 5-3/8″ 7-1/2″ 3-3/8″ 105.0
180B25 25 19.160 1-1/2″ 5-3/8″ 7-1/2″ 3-3/8″ 113.0
180B28 28 21.320 1-1/2″ 5-3/8″ 8″ 3-1/2″ 135.0

#180 C-Hub Sprocket Specifications

C-hub #180 sprockets carry hub projections on both faces of the plate body. This double-hub construction provides the maximum available shaft engagement length for the largest tooth-count units (30–60 teeth) where the torques transmitted require the longest possible key engagement to avoid shaft fretting. The 180C60 at 489 lb is a substantial piece of equipment — check lifting and handling requirements before installation planning.

Tamaño Dientes OD (in) Diámetro del cilindro Max Bore Hub Dia. Longitud a través del orificio Weight (lb)
180C30 30 22.760 1-1/2″ 5-3/4″ 8-1/2″ 4-3/8″ 180.0
180C35 35 26.350 1-1/2″ 5-3/4″ 8-1/2″ 4-3/8″ 222.0
180C40 40 29.940 1-1/2″ 5-3/4″ 8-1/2″ 4-3/8″ 270.0
180C45 45 33.530 1-1/2″ — 9″ 5″ 315.0
180C54 54 39.980 1-1/2″ 6″ 9″ 5″ 477.0
180C60 60 44.280 1-1/2″ 6-1/2″ 9-1/2″ 5-3/8″ 489.0

#180 chain sprocket C-hub heavy industrial large tooth count

Engineering Considerations for #180 Chain Drive Design

#180 chain drive transmission ratio speed torque heavy industrial

#180 chain drives operate in a different performance regime from lighter-duty ANSI sizes. At 2.25-inch pitch, the polygon effect is significant even at modest shaft speeds — the maximum recommended chain speed for a 17-tooth #180 sprocket is approximately 250–350 rpm, which translates to around 3.5 m/s chain speed. Beyond this, the impact loading per tooth engagement exceeds what even SAE 1045 hardened teeth can sustain long-term without accelerated wear.

⚙ Shaft and Bearing Load Calculations

The chain tight-side tension on a #180 drive at full rated power can reach 10,000–40,000 lbf depending on speed and torque. This imposes very high radial bearing loads on both the driver and driven shaft bearings. Always calculate bearing life using the actual chain tight-side plus slack-side tension as the applied radial load — using only the transmitted torque force significantly underestimates bearing load and produces optimistic life predictions. The shaft diameter at the sprocket mounting point should be calculated for both bending from chain pull and torsion from transmitted torque simultaneously.

🔑 Key and Keyway Sizing for Large #180 Sprockets

For C-hub sprockets with bores in the 4–6 inch range, the key must be sized to transmit full drive torque without shear failure. Use parallel keys to ASME B17.1 for imperial bores — the standard provides key width, depth, and length as a function of shaft diameter. For bores above 3 inches, double keys 180° apart are often specified to avoid the shaft stress concentration that a single large keyway creates. When ordering C-hub sprockets in the 30–60 tooth range, provide your shaft diameter and the keyway specification (width × depth × length) and we will confirm the standard key size or machine to your drawing.

🛢 Lubrication Requirements

#180 chain drives at any significant power level require force-feed or oil bath lubrication — manual oiling is not adequate. At chain speeds above 1.5 m/s, oil should be applied continuously to the chain slack run or via a drip-feed system positioned to supply lubricant to the inside of the chain (pin-bushing interface). For drives in dusty or contaminated environments such as quarrying or steel processing, consider an automatic chain lubrication unit that delivers metered lubricant at timed intervals — this approach prevents over-lubrication which would attract abrasive particles while ensuring the pin-bushing interface never runs dry.

Heavy Industrial Applications for #180 Chain Sprockets

🏗 Steel Mill and Metals Processing

#180 chain sprocket steel mill heavy industrial application

#180 chain and sprocket drives are used in hot and cold rolling mill auxiliary drives, slab transfer table drives, and scale pit conveyor systems across Korean steel plants. The 2.25-inch pitch provides the chain cross-section necessary for the shock loads generated by billet and slab transfer at these facilities. C-hub sprockets on the main driven shafts handle the full mill motor torque without slip.

⛏ Mining and Aggregate Processing

#180 chain sprocket mining aggregate conveyor application

Underground mining conveyors, aggregate belt feeder drives, and quarry primary crusher feed conveyors in Korea use #180 chain on main shaft drives where the combination of very high torque, low speed, and constant shock loading from rock material is the defining load case. The #180 chain and C-hub sprocket combination provides the load capacity margin required for these applications without the bulk and complexity of multi-strand arrangements.

🏭 Cement and Building Materials

#180 chain sprocket cement plant bucket elevator application

Bucket elevator main drives in cement plants and fly ash handling systems use #180 chain for head shaft drives where the continuous abrasive material flow places constant stress on the chain-sprocket interface. The A-plate #180A sprocket mounted on a flanged head shaft is a common configuration at these installations. Tooth hardening is particularly important here — cement dust is mildly abrasive and will accelerate tooth wear on unhardened sprockets over multi-year service intervals.

Matching #180 Roller Chain

#180 ANSI roller chain heavy duty 2.25 inch pitch matching chain

Korea Ever-Power stocks #180 cadena de rodillos de alta resistencia — single strand and connecting links — to pair with the sprockets listed above. For demanding applications where standard #180 tensile strength is marginal, our heavy-duty #180H series is available with thicker side plates and larger pins. When sourcing chain and sprockets from the same manufacturer, dimensional compatibility is guaranteed — eliminating the small tolerance stack-up that can occur when mixing chain and sprocket from different production sources.

Full technical guidance on #180 chain power ratings and shaft load calculations for specific industrial installations is available from our technical team. For broader heavy duty chain and sprocket system reference, contact us with your drive parameters — power, speed, service factor, and environment — and we will confirm the correct specification.

¿Por qué Corea? Cadena y piñón Ever-Power

Korea Ever-Power heavy industrial sprocket manufacturing facility

Compañía Coreana Ever-Power de Cadenas y Piñones, Ltd. manufactures and stocks #180 sprockets across all three hub types with technical support for heavy industrial procurement:

✦All three hub types in stock — A-plate, B-hub (11–28T), and C-hub (30–60T) without special-order lead time
✦SAE 1045 steel with heat-treated hardened teeth — higher tensile strength than 1018 baseline; critical for sustained-load heavy industrial duty
✦Custom bore and keyway machining — large bores (up to 9-1/2″ on 60T) and multi-key configurations machined to drawing
✦ANSI B29.1 dimensional compliance — pitch diameter and tooth spacing verified; material certificates and inspection reports available
✦Heavy lift and packaging capability — large-tooth C-hub units shipped with appropriate crating for Korea domestic and export delivery
✦Technical pre-order support — bearing load calculation assistance, shaft sizing review, and cross-reference to existing sprocket catalogue numbers on request

Preguntas frecuentes

Why does the C-hub series start at 30 teeth rather than continuing the B-hub range?
At 30 teeth and above on a 2.25-inch pitch, the outside diameter is 22.76 inches or larger, and the transmitted torque for a #180 chain drive at this sprocket size typically exceeds what a B-hub's single-sided engagement length can reliably key. The C-hub's double-sided hub provides roughly double the key engagement length of the B-hub at equivalent bore size, which is necessary to keep key shear stress within safe limits at these torque levels. For tooth counts of 30 and above on high-torque #180 drives, C-hub is the engineering-correct choice.
What is the maximum speed for a #180 chain drive?
ANSI B29.1 power rating tables for #180 chain typically cover driver sprocket speeds up to 50–100 rpm for the smallest (11–13 tooth) driver sprockets. At these speeds, chain velocity is approximately 3–5 m/s. For the larger sprocket sizes (25–35T driver), rated speeds are typically 15–30 rpm. #180 is fundamentally a slow-speed, high-torque chain — if your drive requires speeds above 150 rpm, #120 or #140 single-strand, or multi-strand #100 or #120, will likely be more appropriate and economical.
How do I handle and install a 489 lb C-hub sprocket safely?
A 489 lb sprocket (180C60) requires mechanical lifting equipment for all handling. Use a lifting sling rated for at least double the sprocket weight, passing through the bore or around the hub — never around the teeth. Ensure the shaft is horizontal and properly supported before attempting to slide the sprocket onto the shaft. The stock bore of 1-1/2 inch is a turned pilot bore only; bore machining to the final shaft diameter is performed before installation. Have the shaft and keyway prepared to final dimension before the sprocket arrives on-site to minimise handling time.
What inspection intervals are recommended for #180 chain drives in industrial service?
For high-cycle industrial drives (running 16+ hours per day), inspect chain elongation every 2,000 operating hours using a chain wear gauge or the ruler-measurement method. Inspect sprocket tooth faces visually every 1,000 hours — look for asymmetric tooth wear (hooking on the leading face) and any pitting or cracking on hardened tooth surfaces. At first sign of hook wear exceeding 25% of original tooth thickness, schedule sprocket replacement at the next planned outage. For continuous-process industries like steel mills and cement plants where unplanned downtime is extremely costly, proactive replacement every 18,000–24,000 hours regardless of observed wear is common practice.
Can I use #180 sprockets with #180H (heavy series) chain?
Yes. #180H heavy-series chain has the same pitch (2.25 inches) and roller diameter as standard #180, so it runs on the same sprocket teeth. The "heavy" designation refers to thicker side plates and larger pin diameter — the roller-to-sprocket engagement geometry is unchanged. In applications where peak shock loads exceed standard #180's working load limit, #180H chain on the same sprockets provides additional tensile capacity without requiring a sprocket change.
How do I order a custom bore for a C-hub #180 sprocket?
Provide: (1) sprocket size code (e.g., 180C40), (2) required finished bore diameter in inches to three decimal places, (3) keyway width and depth per ASME B17.1 or as a custom drawing dimension, (4) number of set screw tappings required and thread size, (5) whether you require a Certificate of Conformance or dimensional inspection report. Lead time for large C-hub custom bore machining is typically 10–15 business days from receipt of confirmed drawing.

Opiniones de los clientes

Opiniones verificadas de clientes en Corea y mercados aledaños.

Jang Seong-hyun, Maintenance Chief, Integrated Steel Plant, Pohang (early 2025)

"We replaced four sets of #180 C-hub sprockets on our slab transfer table drives during the annual maintenance shutdown. Korea Ever-Power supplied 180C30 and 180C35 with custom bores to our shaft drawings. All four sprockets arrived within the 12-day lead time promised, bores were within ±0.01 inch of specified diameter. No installation issues. That kind of reliability on a tight shutdown window matters enormously."

Kim Hyun-woo, Project Engineer, Cement Plant Expansion, North Chungcheong Province (2024)

"Specified #180A sprockets for bucket elevator head shaft installation on our new clinker handling line. Korea Ever-Power cross-referenced our existing sprocket catalogue numbers and confirmed dimensional equivalence before we ordered. The first delivery of four A-plate units was correct on all dimensions. We have now established them as our standard supplier for this product class."

Park Yong-jin, Procurement Manager, Quarry Operations Company, Gyeonggi-do (Q3 2024)

"We purchase #180 B-hub sprockets as annual maintenance stock for our primary crusher belt feeder drives. Three sizes — 180B14, 180B17, and 180B21. Korea Ever-Power quotes are consistently 20–30% below what we were paying through the previous distributor for equivalent specifications. Lead time of 10 days is workable for our planned maintenance schedule."

Oh Jae-sik, Technical Director, Industrial Equipment Fabricator, Ulsan (2025)

"We build heavy material handling equipment and regularly need #180 sprockets in combinations not held by distributors. Korea Ever-Power have been able to supply custom configurations — non-standard tooth counts and special bore arrangements — that we could not source domestically. Response to technical queries is fast, and the engineering team understands what we are asking for without extensive explanation."

Lee Byung-su, Facilities Engineer, Port Terminal Operator, Busan (early 2025)

"Port bulk material handling equipment uses #180 chain on some of our older conveyor lines. Replacement sprockets used to take 4–6 weeks from European suppliers. Korea Ever-Power had the 180A17 and 180B17 in stock — delivered in 11 days. That is the difference between a planned maintenance swap and an emergency shutdown while waiting for parts."

 

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