Keterangan
Finished Bore Sprocket – BS Type — Professional Grade ANSI Sprocket
The Ever-power Finished Bore Sprocket – BS Type is engineered to meet the rigorous demands of modern industrial power transmission. Built from AISI 1045 Carbon Steel, these sprockets cover chain sizes No.25, No.35, No.40, No.41, No.50, No.60, No.80, No.100 with pitch range 1/4″ to 1-1/4″. Available configurations include Hub type with finished bore, keyway, and setscrew. Every unit is CNC-machined to ANSI B29.1 tolerances and undergoes 100% dimensional inspection before shipping.
Technical Specifications
| Parameter | Spesifikasi |
|---|---|
| Chain Compatibility | No.25, No.35, No.40, No.41, No.50, No.60, No.80, No.100 |
| Pitch Range | 1/4″ to 1-1/4″ |
| Material | AISI 1045 Carbon Steel |
| Tooth Hardness | Teeth HRC 50–60 (≤25T); bore H7 tolerance |
| Surface Treatment | Black oxide with corrosion inhibitor |
| Configuration | Hub type with finished bore, keyway, and setscrew |
| Standard | ANSI/ASME B29.1, ISO 606 |
| Bore Tolerance | H7 (finished bore) / Pilot bore (stock) |
Product Highlights
✔ High-Capacity Design
Engineered for maximum power transmission with optimised tooth geometry that ensures smooth chain engagement and minimal energy loss across the full speed range.
🛡 Extended Service Life
Premium steel construction combined with precision heat treatment delivers exceptional wear resistance, reducing replacement frequency and total cost of ownership.
⚙ Versatile Mounting
Multiple hub configurations and bore options ensure compatibility with a wide range of shaft sizes, bearing arrangements, and installation constraints.
🔧 Maintenance-Friendly
Designed for straightforward inspection, lubrication, and replacement, minimising the skills and tools required for routine maintenance operations.
Chain & Accessory Compatibility
This sprocket is compatible with all ANSI-standard roller chains of the corresponding series numbers listed above. Compatible accessories include standard taper bushings, QD bushings (where applicable), split taper bushings, shaft collars, and pillow-block or flange-mount bearings. Shaft bore ranges are determined by the chain number and hub configuration — refer to our detailed catalogue or contact engineering for specific bore availability.
Selection Guide
Select by Chain Number
Identify the chain series number stamped on your chain side plates. Match it to the sprocket series number for guaranteed compatibility. Use the same series for driver and driven sprockets.
Select by Application Demands
Light-duty conveyors and packaging: No.35–50. General industrial and agricultural drives: No.50–80. Heavy aggregate, mining, and steel processing: No.80–140. Extreme-load applications: No.140–200.
Select by Load Capacity
Calculate your design horsepower, apply the appropriate service factor (1.0 for uniform load, 1.3 for moderate shock, 1.5+ for heavy shock), then consult the ANSI horsepower rating tables for the minimum chain pitch and strand count that meets or exceeds your requirement.
Material & Manufacturing
| Milik | Detail |
|---|---|
| Bahan Dasar | AISI 1045 Carbon Steel |
| Carbon Content | 0.43–0.50% (1045 grade) |
| Kekuatan Tarik | ≥ 585 MPa (85 ksi) |
| Heat Treatment | Induction hardened teeth to HRC 50–60 (sprockets ≤25T) |
| Lapisan Permukaan | Black oxide with corrosion inhibitor |
| Manufaktur | CNC hobbing, precision boring, automated deburring |
Aplikasi Industri
Manufaktur
Production lines, automated systems
Mining & Aggregate
Crushers, screens, elevators
Pertanian
Harvesters, irrigation, grain handling
Logistik
Sortation, conveying, palletising
Customer Success Stories
★★★★★ BHP Nickel West — Kalgoorlie, Australia
“Pre-bored sprockets cut our shutdown changeover time from 4 hours to under 90 minutes.”
★★★★☆ Bosch Rexroth — Lohr, Germany
“The H7 bore tolerance is spot-on every time. Consistent quality across all deliveries.”
★★★★★ Samsung Engineering — Seoul, South Korea
“We specified finished bore for a desalination plant project. Zero rework needed.”
★★★★★ Pemex Refining — Minatitlán, Mexico
“Immediate fit-up on our pump drives. The anti-corrosion coating survived 6 months of tropical humidity in storage.”
Pertanyaan yang Sering Diajukan
What bore tolerances are standard?
Standard finished bores are machined to H7 tolerance. Tighter tolerances (H6, js6) are available on request.
What keyway sizes are used?
Keyways follow ANSI B17.1 standards, sized to match the bore diameter. Custom metric DIN keyways are also available.
Can I get a finished bore with no keyway?
Yes, we can supply finished bores without keyways for applications using friction-lock bushings or adhesive shaft retention.
Are winch sprockets (W) available?
Yes, winch sprockets with special keyway configurations (KW 5/16×5/32, setscrew at 90°) are available for No.60 and No.80 series.
What is the stock range?
We stock finished bore sprockets for the most popular bore sizes in each chain series. Non-standard bores ship within 10–15 business days.
Recommended Companion Products
🔗 Matching Roller Chains
ANSI standard and heavy-duty roller chains perfectly paired with your sprocket selection. Browse chains
🔨 Shaft Bushings
Taper lock, QD, and split taper bushings for secure shaft mounting.
⚙ Bearings & Housings
Pillow-block, flange-mount, and take-up bearings for complete drive systems.
Installation Procedure
- Inspect Components: Check sprocket teeth for shipping damage. Verify split bushing halves mate cleanly.
- Assemble Bushing: Nest bushing halves into the sprocket bore. Thread bolts through the draw-up holes finger-tight.
- Mount on Shaft: Position the assembly on the shaft. The split bushing allows easy placement without sliding over shaft ends.
- Axial Positioning: Set the sprocket at the desired location along the shaft, ensuring chain alignment with the mating sprocket.
- Progressive Tightening: Torque bolts in three stages — 50%, 75%, 100% of rated torque — in a cross pattern.
- Final Check: Confirm zero axial play, correct alignment, and proper chain tension before starting the drive.
Maintenance & Care
Weekly: Listen for chain slap or metallic clicking (indicates worn teeth). Monthly: Gauge chain wear with a calibrated elongation tool. Quarterly: Remove chain and inspect tooth flanks against a new-sprocket template. Lubricate every 1,000 hours with food-grade H1 oil in food applications or standard ISO VG 150 oil otherwise. Replace sprocket if any single tooth shows cracking or chipping.
Certifications & Quality Assurance
Our sprockets meet ANSI/ASME B29.1, ISO 606, DIN 8187, and JIS B1801 standards. The manufacturing plant is ISO 9001:2015 certified and undergoes semi-annual surveillance audits. We maintain statistical process control (SPC) on all critical dimensions and provide inspection data packages including CMM reports, surface roughness measurements, and hardness test results. For mining and heavy-industry customers, we offer extended warranty programmes and on-site technical support.
Why Partner with Ever-power Australia Sprocket Co., Ltd.?
We operate one of the region’s most advanced sprocket manufacturing facilities, equipped with over 150 CNC machines, automated heat-treatment furnaces, and Class 10,000 cleanroom inspection stations. With annual production capacity exceeding 5 million units, we supply tier-one OEMs in automotive, energy, mining, and construction. Our ISO 9001 and ISO 14001 certifications underscore our commitment to quality and environmental responsibility. We offer comprehensive support — from initial design consultation and finite element analysis to prototype testing and volume production — ensuring your sprocket performs exactly as specified in your application.
Siap untuk Mengupgrade Sistem Penggerak Anda?
Contact our specialist team today for competitive pricing, technical support, or to request samples. We are committed to helping you find the optimal sprocket solution for your application.
