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RINGSPANN freewheel · RINGSPANN FNR 45
Freewheel RINGSPANN FNR 45

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Freewheel RINGSPANN FNR 45

Manufacturer Part Number
FNR 45
Brand
RINGSPANNExclusive representative in Argentina
Category
Power transmission
Subcategory
Freewheels

RINGSPANN

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Description

RINGSPANN FNR 45 is a freewheel reference, within Power transmission. Request a quote for FNR 45 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

RINGSPANN FNR series freewheels are power transmission components that allow rotation in one direction and lock movement in the opposite direction. They are mounted on shafts and housings for backstop, indexing or one-way coupling functions. MR Accesorios Industriales supplies them in Buenos Aires, Argentina, with technical advice to select the right model for your application.

The FNR series designation is read with fixed letters and a number indicating the size. For example, FNR 8, FNR 12, FNR 15 and FNR 20 correspond to different sizes within the same family. The higher the number, the greater the torque transmission capacity and external dimensions. The numeric suffix does not indicate diameter or width; those data come from the drawing or the technical data sheet for the specific model. To identify the exact variant, provide the full part number.

These freewheels are used in industries such as food, cement, mining, petrochemical and materials handling. In Argentina, they appear in conveyor belts, bucket elevators, gearboxes, machine tools and pumping equipment. Their typical function is to prevent shaft reverse rotation or allow movement in one direction only, protecting motors and mechanisms. They are also used in indexing systems and couplings that require free rotation in one direction.

To select an FNR freewheel, consider the torque to be transmitted, rotation speed, locking direction and environmental conditions. Installation requires shafts and housings with suitable tolerances, correct lubrication and precise alignment to avoid parasitic loads. Sealing protects against dust and moisture, but must be chosen according to the environment. If the equipment operates with vibrations or high temperatures, consult our technical team to validate the configuration.

RINGSPANN freewheels can be interchanged with equivalent products from other brands, but interchangeability is not automatic: mounting dimensions, nominal torque, limiting speed and internal bearing type must be verified. A similar part number is not enough. At MR Accesorios Industriales we help you compare alternatives and determine whether a replacement is viable. It is always advisable to start from the original part number and actual operating conditions.

If you need a RINGSPANN FNR series freewheel, write to us via WhatsApp with the part number or model you are looking for. We will reply shortly with the technical information and the corresponding quote. MR Accesorios Industriales, Buenos Aires, Argentina, more than 80 years supporting the industry.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.

Dimensions

Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.

Frequently Asked Questions

What does FNR mean in RINGSPANN freewheels?
FNR is the designation of a family of freewheels from the brand. The number that follows indicates the size. It is not a universal code: each manufacturer uses its own nomenclature. To identify the exact model, send us the full part number shown on the nameplate or drawing.
How do I choose the correct size of an FNR freewheel?
You need to know the torque to be transmitted, rotation speed and locking direction. The type of mounting and environmental conditions also matter. With that data, we advise you on selecting the right size within the FNR series. Write to us via WhatsApp and we will reply shortly.
Can RINGSPANN freewheels be replaced by other brands?
Yes, equivalents from other brands exist, but interchangeability requires verifying dimensions, nominal torque, limiting speed and bearing type. A similar part number is not enough. At MR Accesorios Industriales we compare alternatives and tell you whether the replacement is viable.
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