DKFL ASNU 80 Freewheel Clutch
The DKFL ASNU 80 one-way clutch is a roller-type freewheel that is non-bearing supported. This means that auxiliary bearings are required to support both radial and axial loads during operation, typically installed alongside the unit within the same housing and tolerance limits. The outer diameter of this model is engineered to be identical to standard Series 63 (size 6316) ball bearings, allowing for compact and efficient coaxial arrangements in heavy-duty machinery.
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Product Detail
DKFL ASNU 80 Roller Type Freewheel & One-Way Clutch Non-Bearing Supported | 80mm Shaft Diameter | Dimensionally Interchangeable with Series 63 Ball Bearings
The DKFL ASNU 80 roller-type freewheel and backstop clutch delivers superior holding torque and standard dimensional compatibility with series 63 bearings, engineered under strict DKFL quality standards and distributed by Kamyar Gostar Iranian Co. (KGICO).
Technical Overview of DKFL ASNU 80 Freewheel Clutch
The DKFL ASNU 80 one-way clutch is a roller-type freewheel that is non-bearing supported. This means that auxiliary bearings are required to support both radial and axial loads during operation, typically installed alongside the unit within the same housing and tolerance limits. The outer diameter of this model is engineered to be identical to standard Series 63 (size 6316) ball bearings, allowing for compact and efficient coaxial arrangements in heavy-duty machinery.
The inner race is keyed to the 80 mm shaft for positive torque transmission. The outer race features an n6 tolerance press-fit design into the housing, complemented by side notches that ensure reliable torque transmission without slip. This versatile unit excels as a backstop, overrunning clutch, or indexing element in demanding industrial power transmission systems.
Designation & Structural Features (DKFL ASNU 80)
"ASNU" Series: Designates standard roller-type industrial freewheels without internal bearing support, featuring outer dimensions matching series 63 ball bearings.
Size "80": Indicates the nominal inner diameter (bore) of 80 mm for precise shaft mounting.
Roller Mechanism: Precision spring-loaded rollers lock instantly in one direction and overrun smoothly with minimal friction in the opposite direction.
Positive Torque Transmission: Inner race keyway combined with outer race press-fit tolerances and lateral notches prevents slippage under high loads.
DKFL Brand Quality: Manufactured using high-grade wear-resistant alloy steels, supplied and fully supported by Kamyar Gostar Iranian Co. (KGICO).
Technical Specifications & Dimensional Data
| Bore (d) | Outer Dia (D) | Total Width (B) | Nominal Torque (TKN) | Max Overrunning Speed | Mechanism Type | Dimensional Match | Approx. Weight |
|---|---|---|---|---|---|---|---|
| 80 mm | 140 mm | 33 mm | 3275 Nm | 550 RPM | Spring-loaded Roller | Series 63 Ball Bearing | ~1.9 kg |
Key Features & Competitive Advantages of DKFL ASNU 80
High Torque Capacity (3275 Nm)
Precision-engineered rollers and cam profiles ensure reliable torque transmission in heavy industrial drives.
Series 63 Dimensional Compatibility
Outer dimensions match standard series 63 bearings, facilitating seamless coaxial layout integration.
Instantaneous Backstopping
Rollers engage instantly against reverse rotation to prevent load rollback with maximum safety.
Secure Shaft & Housing Fit
Equipped with a standard inner race keyway and positive outer housing notches to prevent relative slip.
Advanced Metallurgy & Heat Treatment
Forged from premium alloy steel with hardened working surfaces for exceptional wear and fatigue resistance.
DKFL Brand Authenticity
Rigorously tested under strict QA protocols, backed by Kamyar Gostar Iranian technical support.
Common Industrial Applications
- Heavy-Duty Trough & Belt Conveyors: Acting as a backstop to prevent accidental load reversal during power outages or shutdowns.
- Industrial Gearboxes & Vertical Elevators: Securing loads in material handling lifts and industrial hoists.
- Packaging Machinery & Industrial Presses: Utilizing indexing mechanisms for precise intermittent feeding.
- Mining & Crushing Equipment: Absorbing high shock loads and preventing reverse rotation in drive drums.
- Dual Pumps & Multi-Drive Systems: Automatically decoupling motor speeds in complex power train setups.
Installation Guidelines & Engineering Warnings
Since the ASNU 80 freewheel is non-bearing supported, it must be installed adjacent to a standard bearing (such as a series 63 ball bearing) within the same housing to properly accommodate radial and axial loads.
An H7 or K6 housing tolerance is recommended for the outer race. The housing must possess sufficient rigidity to prevent expansion after assembly, ensuring unhindered roller engagement.
Rotation Direction & Lubrication
Verify the required locking and overrunning direction (clockwise or counterclockwise) relative to your system layout prior to final assembly. Proper oil or grease lubrication suited for the operational overrunning speed is mandatory.
Frequently Asked Questions (FAQ)
1. Why does the ASNU 80 clutch require an auxiliary bearing?
This freewheel is designed as "non-bearing supported," meaning its internal structure cannot sustain radial or axial shaft loads independently. These forces must be borne by adjacent auxiliary bearings.
2. What does dimensional interchangeability with series 63 bearings mean?
Its outer diameter and width are identical to standard series 63 ball bearings (size 6316), allowing designers to mount the clutch directly alongside the main bearing within a single shared housing.
3. What is the primary industrial application of the ASNU 80?
Its most common application is as a backstop in heavy inclined conveyors, elevators, and power transmission setups requiring foolproof prevention of reverse motion.
Inquire & Purchase DKFL ASNU 80 Freewheel Clutch
Contact the sales and engineering experts at Kamyar Gostar Iranian Co. (KGICO) for stock availability, wholesale pricing, technical drawings, and engineering consultation.
Inquire & Order at kgico.co