Lower Arbor Assembly for Precision Slitting Heads

Product Specifications

Technical details and manufacturing context for Lower Arbor Assembly

Definition

Within the Precision Slitting Head system, the Lower Arbor Assembly serves as the foundational mounting structure for the lower cutting blades. It provides precise rotational support, maintains blade alignment under operational loads, and ensures consistent cutting performance by minimizing vibration and deflection during high-speed slitting processes. This assembly typically interfaces with the machine's drive mechanism and adjustment systems.

The assembly is designed to accommodate shafts with diameters ranging from 50 to 120 mm and lengths from 500 to 2000 mm, depending on the slitting width. It is manufactured from alloy steel or bearing steel, with material grades such as 40Cr or 42CrMo, to achieve a hardness of HRC 58–62. The surface roughness is maintained at Ra 0.4–0.8 μm to ensure proper sealing and bearing fit. Radial and axial runout are controlled to ≤0.01 mm and ≤0.02 mm respectively, in accordance with ISO 1101, to maintain cut quality and blade alignment.

The assembly is capable of operating at speeds up to 3000–6000 rpm, with a maximum radial load of 10–50 kN, depending on bearing capacity. It operates within a temperature range of -10 to 60 °C, limited by lubricant and material properties. The weight of the assembly varies from 50 to 500 kg, depending on size.

These specifications are reference ranges and must be verified for the specific model and application. Standards such as ISO 1101, ASTM E18, ISO 1302, and GB/T 3077 are referenced for verification and procurement purposes, but do not imply certification or compliance of any particular product. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The Lower Arbor Assembly rotates via connection to the machine's drive system, transmitting torque to the lower slitting blades. It maintains precise concentricity and axial positioning through bearing supports and mounting interfaces, allowing the blades to engage material with controlled pressure and alignment relative to the upper arbor assembly. The assembly's rigidity and precision minimize vibration and deflection, ensuring consistent cutting performance.

Common Materials

Alloy Steel, Bearing Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Shaft Diameter	50–120 mm	Matches blade bore and bearing size
Shaft Length	500–2000 mm	Depends on slitting width
Radial Runout	≤0.01 mm	Critical for cut qualityISO 1101
Axial Runout	≤0.02 mm	Affects blade alignmentISO 1101
Hardness	HRC 58–62	Wear resistanceASTM E18
Surface Roughness	Ra 0.4–0.8 μm	Sealing and bearing fitISO 1302
Max Operating Speed	3000–6000 rpm	Limited by bearing and balance
Max Radial Load	10–50 kN	Depends on bearing capacity
Operating Temperature	-10–60 °C	Lubricant and material limits
Material Grade	40Cr/42CrMo	High strength and toughnessGB/T 3077
Weight	50–500 kg	Depends on size

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Arbor Shaft Part
Primary structural component that transmits torque and supports blades

Material: Alloy Steel
Bearing Housing Part
Encloses and supports bearings for smooth rotation and load distribution

Material: Steel
Mounting Flange Part
Interface for connecting to the slitting head frame and drive mechanism

Material: Steel
Blade Spacers Part
Position and separate multiple slitting blades along the arbor length

Material: Tool Steel
Bearings
Carry the arbor in its housing and hold concentricity under cutting load.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Precision Slitting Head

View system integration details

Manufacturers of Lower Arbor Assembly

Manufacturer profiles associated with Lower Arbor Assembly.

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Frequently Asked Questions

What is the function of the lower arbor assembly?

The lower arbor assembly supports and positions the lower slitting blades in a precision slitting head. It provides rotational support, maintains blade alignment under load, and minimizes vibration and deflection to ensure consistent cutting performance.

What are the typical shaft diameter and length ranges?

The shaft diameter typically ranges from 50 to 120 mm, and the shaft length from 500 to 2000 mm, depending on the slitting width. These are reference ranges; exact values must be confirmed for the specific model.

What standards are referenced for runout and surface roughness?

Radial and axial runout are referenced to ISO 1101, with values ≤0.01 mm and ≤0.02 mm respectively. Surface roughness is referenced to ISO 1302, with Ra 0.4–0.8 μm. These standards are for verification purposes and do not imply certification.

How should I verify the specifications for my application?

Always verify model-specific values and standards with the legal manufacturer or supplier. The listed parameters are reference ranges and may vary based on the actual product and application.

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pressure:	Max 50 bar
other spec:	Max blade speed: 3000 RPM, Material thickness range: 0.1-6.0 mm
temperature:	-20°C to 150°C

Lower Arbor Assembly

Product Specifications

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