Product page
Freewheel RINGSPANN FON 37 SF
- Manufacturer Part Number
- FON 37 SF
- Brand
- RINGSPANNExclusive representative in Argentina
- Category
- Power transmission
- Subcategory
- Freewheels
![]()
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
RINGSPANN FON 37 SF is a freewheel reference, within Power transmission. Request a quote for FON 37 SF via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
RINGSPANN FON SF freewheels are power transmission components that allow rotation in one direction and lock in the opposite direction. They are integrated into machines and equipment for backstop, intermittent indexing or automatic coupling functions. MR Accesorios Industriales supplies this line as exclusive representative in Argentina, with technical advice to select the right model for each application.
The FON SF series designation combines a number indicating the construction size and the letters SF identifying the mounting or sealing variant. In the examples FON 37 SF, FON 44 SF, FON 57 SF, FON 72 SF, FON 82 SF, FON 107 SF, FON 127 SF and FON 140 SF, the numeric value increases with transmission capacity and outer dimensions. To correctly interpret each code, it is essential to consult the manufacturer's technical documentation or write to us with the exact model.
These freewheels are used in industries such as food, metallurgy, mining and petrochemical, in conveyor belt, elevator, gearbox, press and machine tool applications. In Argentina, they are common in production lines requiring backstop control or controlled indexing. Their compact and robust design makes them suitable for demanding environments, with good resistance to contamination when the appropriate sealing is selected.
To choose a FON SF freewheel, take into account the transmission torque, rotation speed, free rotation direction and mounting type. Check alignment between shafts and axial clearance, and ensure correct lubrication according to working conditions. The sealing must protect against dust and moisture if the equipment operates in aggressive environments. Careful mounting extends service life and prevents premature failures.
RINGSPANN freewheels can be interchanged with equivalent products from other brands, but equivalence is not automatic: mounting dimensions, permissible torque and limiting speed must be compared. Matching the outer diameter is not enough. Therefore, before replacing a unit, it is advisable to validate compatibility with a specialist. MR Accesorios Industriales can guide you in that analysis.
If you need a RINGSPANN FON SF series freewheel, send us the complete part number on WhatsApp. With that data, our technical team identifies the variant and replies shortly with the information needed for your quote request. We can also advise you if you have doubts about the designation or the replacement of an existing model.
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 the SF suffix in the FON series mean?
- The letters SF identify a construction variant within the FON family, generally associated with the sealing or mounting type. To know precisely what it means for each size, it is necessary to consult the manufacturer's data sheet or write to us with the complete part number.
- How do I choose the correct FON SF freewheel size?
- The size is selected according to transmission torque, rotation speed and shaft dimensions. The series numbers (37, 44, 57, etc.) indicate capacity steps. Send us your application data and we will help you define the model.
- Do you ship nationwide?
- Yes, we ship throughout Argentina. We coordinate logistics according to destination and order volume. Write to us on WhatsApp with the part number or model you need and we will reply shortly with the available options.

