説明
Premium Single-Strand Type A Plate Sprocket — ANSI Standard Series
The Ever-power Single Type A Steel Stock Sprocket is a flat-plate design without a hub, purpose-built for space-constrained installations where the sprocket mounts flush against a support surface or is welded to a hub. Available across ANSI chain sizes No.25 (1/4″ pitch) through No.200 (2-1/2″ pitch), this product line covers tooth counts from 8T up to 112T, delivering unmatched versatility for engineers designing power transmission and material handling systems.
Detailed Technical Specifications
| チェーン番号 | Pitch (inches) | Roller Dia. (in) | Tooth Width B1 (in) | Tooth Range | Max Bore (in) |
|---|---|---|---|---|---|
| 25 | 1/4″ | 0.130 | 0.110 | 9T – 72T | 1/2 |
| 35 | 3/8″ | 0.200 | 0.168 | 8T – 112T | 23/32 |
| 40 | 1/2″ | 0.312 | 0.284 | 8T – 112T | 1 |
| 41 | 1/2″ | 0.306 | 0.227 | 8T – 112T | 7/8 |
| 50 | 5/8″ | 0.400 | 0.343 | 8T – 112T | 1-1/4 |
| 60 | 3/4″ | 0.469 | 0.493 | 8T – 112T | 1-1/2 |
| 80 | 1″ | 0.625 | 0.575 | 8T – 112T | 2 |
| 100 | 1-1/4″ | 0.750 | 0.713 | 8T – 60T | 2-3/16 |
| 120 | 1-1/2″ | 0.875 | 0.924 | 9T – 45T | 2-1/2 |
| 140 | 1-3/4″ | 1.000 | 0.924 | 9T – 35T | 2-15/16 |
| 160 | 2″ | 1.125 | 1.156 | 9T – 30T | 3-15/16 |
| 200 | 2-1/2″ | 1.562 | 1.389 | 9T – 30T | 5-1/2 |
Key Product Features & Benefits
✔ Precision-Machined Tooth Profile
CNC-hobbed teeth ensure exact ANSI B29.1 involute profile, guaranteeing smooth chain engagement, reduced noise, and minimal vibration even at high RPMs.
🛡 Premium 1045 Carbon Steel
Manufactured from AISI 1045 medium-carbon steel, offering an optimal balance of tensile strength (85 ksi min.), machinability, and cost efficiency for general-purpose drives.
⚙ Flat Plate Design — No Hub
Type A configuration allows flush mounting, welding to custom hubs, or sandwiching between flanges — ideal for tight spaces and custom shaft arrangements.
🔧 Drop-In ANSI Interchangeability
Fully interchangeable with all ANSI-standard roller chains and mating sprockets, enabling hassle-free replacements without re-engineering existing drive systems.
Chain & Component Compatibility
Each Type A sprocket is designed to mate precisely with its corresponding ANSI single-strand roller chain:
| Sprocket Series | Compatible Chain | Shaft Bore Range | Coupling Options |
|---|---|---|---|
| No.25 Type A | ANSI 25 / 25H | 1/4″ – 1/2″ | Weld-on hub, set collar |
| No.35 Type A | ANSI 35 | 3/8″ – 23/32″ | Weld-on hub, clamp collar |
| No.40 Type A | ANSI 40 / 40H | 1/2″ – 1″ | QD bushing, taper lock |
| No.50 Type A | ANSI 50 | 1/2″ – 1-1/4″ | QD bushing, taper lock |
| No.60 Type A | ANSI 60 / 60H | 5/8″ – 1-1/2″ | QD bushing, split taper |
| No.80 Type A | ANSI 80 / 80H | 3/4″ – 2″ | QD bushing, split taper |
| No.100–200 Type A | ANSI 100–200 | 1″ – 5-1/2″ | QD bushing, keyed bore |
Sprocket Selection Guide
チェーン番号で選択
Match your existing roller chain marking (stamped on side plates) to the corresponding sprocket series number. For example, an ANSI 40 chain requires a No.40 sprocket. If your chain is a heavy-duty “H” series (e.g., 60H), standard sprockets of the same number will fit.
Select by Application
Light-duty packaging lines: No.25–35. General manufacturing conveyors: No.40–60. Heavy aggregate, mining, and lumber: No.80–120. Extreme-load steel mill and oil-field drives: No.140–200.
Select by Load Rating
Calculate the design horsepower using the ANSI selection tables, factor in a service factor (1.0–1.5 for uniform loads; up to 2.0 for heavy shock), then choose the smallest chain pitch that meets the required capacity. A smaller pitch sprocket at higher RPM is often quieter and lighter than a larger pitch at lower speed.
Material & Manufacturing Process
🔨 Base Material
AISI/SAE 1045 medium-carbon steel (0.43–0.50% C, 0.60–0.90% Mn). This grade provides a tensile strength of approximately 85 ksi and a hardness of 170–210 HB in the as-rolled condition, ensuring excellent machinability and weldability.
🔥 Heat Treatment
Teeth on sprockets with 25 teeth or fewer are induction-hardened to HRC 50–60 at the tooth tip and flank, while the hub/plate body remains at core hardness (HRC 20–28) for impact toughness. Larger tooth counts are supplied in the as-rolled condition, suitable for moderate-speed applications.
⚖ Surface Treatment
Standard black oxide (gun-blue) finish provides temporary corrosion protection during storage and shipping. Optional finishes include zinc plating (clear or yellow chromate), Dacromet coating for extreme corrosion environments, and nickel plating for food-grade applications.
Application Scenarios
製造業
Assembly lines, packaging machines, CNC lathes
Conveyors
Belt drives, roller conveyors, sortation systems
農業
Harvesters, grain elevators, feed mixers
鉱業
Crushers, screening plants, bucket elevators
Global Customer Testimonials
★★★★★ BHP Conveyor Division — Melbourne, Australia
“We replaced our previous supplier’s sprockets with Ever-power Type A units on 14 underground conveyor drives. After 18 months of continuous operation, tooth wear is less than 0.15 mm — well within spec. Delivery to Melbourne was faster than our local distributor.”
★★★★★ Krones AG — Neutraubling, Germany
“Precision on the tooth profile is outstanding. We use the No.40 and No.50 Type A sprockets on our bottling-line drives, and the noise level dropped measurably compared to the previous brand.”
★★★★☆ Tata Steel Processing — Jamshedpur, India
“Cost-effective without compromising on hardness or dimensional accuracy. We’ve standardised on Ever-power for all our roller-table drives. OEM bore machining saved us considerable workshop time.”
★★★★★ Bunge Milling — Sao Paulo, Brazil
“Grain elevator drives run 24/7 in a dusty, high-humidity environment. The black-oxide finish on these sprockets holds up remarkably well, and replacement intervals have extended from 12 to 20+ months.”
よくある質問
What is the difference between Type A and Type B sprockets?
Type A is a flat plate with no hub — ideal for welding onto custom hubs or mounting against a flat surface. Type B has a hub on one side, allowing direct shaft mounting with a keyway and setscrew. Choose Type A when you need a compact profile or plan to weld the sprocket to an existing structure.
Are these sprockets hardened?
Yes — all stock sprockets with 25 teeth or fewer come with induction-hardened teeth (HRC 50–60). Larger tooth-count sprockets are supplied un-hardened in the as-rolled condition, which is adequate for most moderate-speed applications. Custom through-hardening is available on request.
Can I get a custom bore size?
Absolutely. We supply sprockets as stock bore (pilot bore) or finished bore with keyway, setscrew, and specified tolerances. Contact our engineering team at sprockets.top/contact with your shaft diameter and tolerance requirements.
What surface treatments are available?
Standard is black oxide. We also offer zinc plating (electro-galvanised), yellow chromate, Dacromet, nickel plating, and hard chrome for extreme-wear applications. Stainless steel (304 or 316) sprockets are available as custom orders.
What is the lead time for OEM orders?
Stock items ship within 3–5 business days. Custom bore, special materials, or large-volume OEM orders typically ship within 15–25 business days, depending on quantity and specification complexity.
おすすめの関連製品
🔗 ANSI Roller Chains
Standard and heavy-duty single-strand roller chains (No.25–No.200) to perfectly match your Type A sprocket. チェーン店を閲覧する
🔨 Taper-Lock Bushings
Precision taper bushings for quick, keyless shaft mounting when using Type A sprockets welded to bushing-style hubs.
⚙ Shaft Bearings
Pillow-block and flange-mount bearings sized to support your sprocket shaft loads.
Installation Guide
- Shaft Preparation: Clean the shaft and inspect for burrs or damage. Verify shaft diameter and keyway dimensions match the sprocket bore specifications.
- Mounting: Slide the sprocket onto the shaft (or weld Type A to a hub first). For keyed bores, align the key before pushing the sprocket into position.
- Alignment: Use a straight-edge or laser alignment tool across the faces of the driving and driven sprockets. Misalignment should not exceed 1/64″ per foot of chain span.
- Chain Tensioning: Install the roller chain and adjust the centre distance so that chain sag on the slack side is approximately 2% of the span length. Over-tensioning accelerates wear.
- Fastening: Tighten setscrews to the recommended torque (refer to bore size chart). Apply medium-strength threadlocker for vibration resistance.
Maintenance & Inspection Schedule
| Interval | Action | Replacement Threshold |
|---|---|---|
| Weekly | Visual inspection for chain sag, unusual noise, or tooth chipping | Any cracked or chipped tooth — replace immediately |
| Monthly | Measure chain elongation with a wear gauge | Replace chain at 3% elongation; inspect sprocket teeth |
| Quarterly | Check sprocket tooth profile against a new sprocket or template | If tooth tip wear exceeds 0.5 mm beyond original profile, replace |
| Every 2,000 hrs | Full lubrication service; re-tension chain | Re-lubricate with ISO VG 100–150 oil or NLGI #2 grease |
Certifications & Standards Compliance
All Ever-power steel stock sprockets are manufactured in compliance with ANSI/ASME B29.1 (Precision Power Transmission Roller Chains, Attachments, and Sprockets), ISO 606, and DIN 8187/8188. Our production facility holds ISO 9001:2015 certification, and materials are traceable to mill certificates. On request, we provide Certificates of Conformance (CoC) and material test reports (MTR) for project-critical orders.
Why Choose Ever-power Australia Sprocket Co., Ltd.?
We are a vertically integrated sprocket manufacturer with over 20 years of production experience and dedicated export operations serving 60+ countries. Our facility houses CNC hobbing centres, induction hardening lines, and in-house metrology labs equipped with CMM and gear-profile testers. We have supplied OEM sprockets to leading brands in mining, food processing, automotive assembly, and agricultural machinery. Whether you need 50 pieces or 50,000, our flexible production lines and strategic raw-material partnerships ensure competitive pricing, consistent quality, and on-time delivery — backed by a 12-month product warranty.
Get a Quote — Start Your Partnership Today
Ready to improve your drive system’s reliability and reduce maintenance costs? Contact our sprocket specialists for volume pricing, custom bore machining, or engineering support.
