Scaffolding wheels in POLYURETHANE and POLYAMIDE | NYPU4B | Diameter from 125 to 200 mm | SUPPORT | PLATE

NYPU4B scaffolding wheels with polyurethane tread and polyamide core provide strength and durability for scaffolding and trestles. The galvanized steel supports with swivel plate provide stability, while the 48-hour salt spray tested galvanization ensures corrosion protection. The RoHS certified material guarantees quality and safety. Available in diameters of 125, 150 and 200 mm, they have a hole spacing of 105x80 mm with a hole of 11x13.5 mm. The 125 mm model supports 600 kg with a height of 158 mm and an offset of 30 mm, the 150 mm model supports 700 kg with a height of 181 mm, while the 200 mm version has a height of 241 mm, a capacity of 700 kg and an offset of 40 mm. Available with foot brake and customizable on request.

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125mm-wheels, 150mm-wheels, 200mm-wheels, Certificato, certifié-RoHS, diametro 125, diametro 150, diametro 200, dureté-85ShA, durezza-85ShA

By

AR.Trade s.r.l.

SKU:

J125NYPU4B

Wheels for scaffolding and trestles

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Wheels with polyurethane tread and polyamide core .

Use : scaffolding and trestles. Supports : galvanized steel * with swivel plate. RoHS-certified wheel material . Galvanization subjected to 48-hour salt spray test.

Ambient temperature (°C): -15 / +80
Hardness (ShA): 85±5

Pedal brake available in various versions. Customization is possible upon request.

* Galvanized steel/sheet metal is compatible with water in the short/medium term, but is not ideal for continuous immersion or for food use without internal treatments.

(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(Kg)	Offset [mm]	[Cod]
125	40	158	135x110	105x80	11x13.5	600	30	J125NYPU4B
150	45	181	135x110	105x80	11x13.5	700	30	J150NYPU4B
200	50	241	135x110	105x80	11x13.5	700	40	J200NYPU4B

SCROLLING TYPE


Bushing hole	Roller cage	Ball bearings

TYPE OF FLOOR


Cement	Ceramic	Carpet	Asphalt	Shavings	Grilled	Dirt road

SUPPORT TYPE


Fixed plate	Turntable	Turntable with brake	Rotating with central hole	Rotating with central hole and brake	Rotating with threaded shank	Rotating with threaded shank and brake	Rotating with smooth shank	Rotating with smooth shank and brake

WHEEL SIZES


Wheel diameter	Band width	Hub hole diameter	Hub length	Total height	Plate size	Hole spacing	Hole diameter	Through hole diameter	Pin diameter	Pin height

TERMS OF USE


Hardness	Room temperature	Flow rate

GUIDE TO CHOOSING WHEELS

A wheel is a circular object that can rotate around a central axis.

The wheel is composed of the following elements:
1. core
2. coating
3. hub
4. support

Wheels can be made of different materials both for the core and for the coating. They also differ in size, type of sliding and load capacity. For each individual need it is essential to identify the most suitable wheel, with any support.
In this choice it is necessary to take into account the type of use, the environment of use and the load it will have to support.

THE SUPPORT
The support is a connecting element between the wheel and the trolley/machinery/equipment etc. Manually operated wheels are usually not drive wheels but are only intended for towing or pushing operations with manual or mechanical means at reduced speed (max 4 km/h).

There are different types of support depending on the type of rotation and movement that allow:

Rotating supports
Rotating supports rotate around their vertical axis as the direction of travel changes. They can be with a plate, with a through hole, with a smooth pin or threaded pin. All these types of supports can have a built-in brake.

Fixed supports
It cannot rotate, it serves to keep the wheel along a guide line and is only available in the plate version.

On the same trolley/machinery/equipment it is possible to use wheels with different supports to maximize its performance.

TYPES OF SCROLLING

	Bushing bore: The bushing is the simplest, cheapest and most resistant type of sliding. Wheels with supports and through hole are normally used for trolleys moved at low speed and short distances. This type of sliding does not require particular maintenance except in some cases where the use of grease and oil is recommended. It is particularly resistant to corrosion and impacts.
	Needle Roller Cage: The needle roller cage bearing is a strong slide with a small assembly space that does not require any particular maintenance. It is the most used type of slide for light-medium loads. It consists of steel rollers caged in a steel or nylon structure. The rollers are lubricated at the time of assembly so they do not require any further maintenance.
	Ball Bearing: The ball bearing is ideal for medium-heavy loads where ease of sliding is of primary importance. It is composed of steel balls inserted in a cage that rotates between an outer ring and an inner ring also made of steel. The balls are lubricated at the time of assembly and sealed for better waterproofing.

TYPES OF SUPPORTS

For wheels with fixed and rotating supports, it is necessary to securely fasten the wheel to the trolley/equipment/machinery.

The fixing elements present in our wheels are the following:

Plate fixing

to screw, it is recommended for all machinery or flat surfaces. They are used for both light loads and high capacities usually for industrial applications.
Particular attention must be paid to the dimensions of the plate, the fixing hole spacing as well as the diameter of the fixing holes.

Fixing with central hole

This type of fixing has a central hole to screw onto the trolley.
Particular attention must be paid to the diameter of the plate and the diameter of the central hole.

Fixing with threaded shank

The shank is screwed directly into the carriage and secured with a nut. Pay attention to the diameter of the threaded shank and the length of the shank.

Fixing with smooth shank

the shank is fixed directly into a tube or hole. It is used in the case of light-duty wheels.
There is also a version with a clip-on shank: the shank is inserted into a special tube and secured with a spring ring.
Wheels with this type of fixing are quick to mount and are usually used for furniture wheels.
When choosing a shank fastening, the shank diameter and length must be considered.

TYPES OF TREAD

Wheels and supports

Download by sections:
industrial , furniture and scaffolding wheels.

Download the catalog

Wheels for trolleys, wheelbarrows and garden

Pneumatic wheels
Puncture-proof for every need.

Download the catalog

Installation

Secure the supports securely at the designated points on the trolley with suitable hardware; use washers or distribution plates where necessary.
Reinforce the trolley structure at the fixing points.
Assembly must not deform or alter the functionality of the support.
Rotating support: axis perfectly perpendicular to the plane of the trolley.
Fixed support: mount the wheels in pairs while keeping the axes parallel to ensure linear guidance.
It is possible to use wheels of the same model with different fixings (plate, pin, central hole) if they are compatible with the frame and load capacity.

Correct use

Observe the load capacity , speed and operating temperature indicated for the wheel and support.
Distribute the load evenly; avoid specific overloads and impacts against edges or obstacles.
Use on surfaces suitable for tread diameter and material.
For mechanical towing or long distances, check the suitability of wheels and supports for the intended use.

Periodic checks and maintenance

Regular inspections: check the tightness of bolts and nuts, and ensure there are no cracks, deformations, or abnormal play on brackets and plates.
Check the condition of the wheel (tread, body, bearings/bushings) and replace it in case of uneven wear, cuts or flat spots.
Lubricate, if applicable, the pivot points of the rotating support and the sliding parts of the wheel according to the manufacturer's instructions.
Keep rotation areas and mounting holes clean; remove debris that may become caught.
After impacts or sudden maneuvers, carry out an extraordinary check of the supports, wheels and fixings.
In humid or aggressive environments, increase the frequency of checks on the finish and evaluate additional protections or versions in more suitable materials (e.g. stainless steel).

Following these instructions improves smoothness and safety, reduces wear and extends the life of wheels and castors.

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