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Freewheel RINGSPANN SF 200-50 SF
- Manufacturer Part Number
- SF 200-50 SF
- Brand
- RINGSPANNExclusive representative in Argentina
- Category
- Power transmission
- Subcategory
- Freewheels
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Description
RINGSPANN SF 200-50 SF is a freewheel reference, within Power transmission. Request a quote for SF 200-50 SF via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
RINGSPANN SF series freewheels are power transmission components that allow rotation in one direction and lock in the opposite direction. They are used as backstops, for intermittent indexing or as safety devices in machines. MR Accesorios Industriales supplies them in Buenos Aires, Argentina, with more than 80 years of experience in the field. If you need one, send us the part number via WhatsApp and we will quote you.
The SF series designation combines a number that indicates the size and a suffix that defines the variant. For example, in SF 42-21 SF, SF 46-21 SF or SF 56-21 SF, the first number is associated with the outer diameter or the size of the assembly, while the second block (21, 25, 50) identifies the width or the type of construction. Models SF 82-25 SF, SF 107-25 SF, SF 127-25 SF and SF 140-50 SF follow the same logic. To choose the right one, have the shaft diameter, the available space and the required direction of rotation on hand.
These freewheels are used in industries such as food, metallurgy, textile and plastics, in conveying equipment, mixers, presses and machine tools. In Argentina, they are commonly found in production lines that need to prevent reverse rotation or synchronize movements. They are also used in gearboxes and transmission systems where a reliable one-way coupling is required. MR Accesorios Industriales offers them for replacement and new projects throughout the country.
To select an SF freewheel, verify the torque it must transmit, the rotation speed and the environmental conditions. Assembly requires precise alignment between the shaft and the housing, and proper lubrication according to the operating regime. The sealing protects against dust and moisture, so it is advisable to check the type of radial shaft seal if the equipment operates in dirty environments. If space is limited, consider the narrower variant. Always follow the manufacturer's instructions for tightening and concentricity.
RINGSPANN freewheels can be interchanged with those of other brands if the main dimensions, the permissible torque and the direction of rotation match. However, each manufacturer defines its own tolerances and capacities, so the substitution must be validated with the technical data. At MR we advise you to find the right equivalent within the SF series or other lines. Interchangeability is not automatic: always compare the specifications before replacing.
If you already have the part number of the freewheel you need, write to us via WhatsApp and we will quote you promptly. We can also help you identify the model if you send us the shaft and housing measurements, the torque and the working conditions. We handle inquiries from all over the country from Buenos Aires, Argentina.
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 applications do RINGSPANN SF series freewheels have?
- They are used as backstops, for intermittent indexing or as safety devices in machines. They are present in conveying equipment, mixers, presses and transmission systems that require rotation in one direction only.
- How do I choose the right SF model for my equipment?
- You need the shaft diameter, the available space, the torque to be transmitted and the direction of rotation. With that data we advise you to select the correct variant within the SF series.
- Can I replace a freewheel from another brand with a RINGSPANN SF?
- Yes, if the dimensions, permissible torque and direction of rotation match. Always verify the tolerances and capacities, because interchangeability is not automatic. Send us the specifications and we will help you validate it.

