Product page
Freewheel TSUBAKI B 204
- Manufacturer Part Number
- B 204
- Brand
- TSUBAKIOfficial brand
- 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
TSUBAKI B 204 is a freewheel reference, within Power transmission. Request a quote for B 204 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
TSUBAKI B series freewheels are unidirectional transmission mechanisms that allow rotation in one direction and lock it in the opposite direction. They are used to prevent backdriving, control intermittent feeds and protect equipment. MR Accesorios Industriales supplies this line as an official brand, with technical support so you can choose the right variant for your application.
The B series designation is read with the letter B followed by a three-digit number that identifies the size. For example, B 203, B 204 and B 205 are the smallest sizes in the series, while B 208, B 209 and B 210 cover the larger ones. The number does not indicate dimensions directly: each size has its own capacity and dimensions. To request a quote, send us the full part number shown on your equipment or on the identification plate.
These freewheels are used in conveyor belts, bucket elevators, mills, mixers and machine tools. In Argentine industry they appear in food, cement and chemical plants and in packaging lines, where they perform backstop or controlled feed functions. They are also mounted in gearboxes and transmissions that require locking in one direction only to prevent damage from reversal of rotation.
To select a freewheel, take into account the torque it must transmit, the rotation speed, the locking direction and the environmental conditions. Mounting requires shafts and housings with the proper fit, cleanliness and lubrication compatible with the sealing. Poor alignment or the wrong lubricant shortens service life. If the equipment operates with a lot of dirt or moisture, it is advisable to check the available protection.
TSUBAKI freewheels can be interchanged with equivalent products from other brands, but interchangeability depends on the mounting dimensions, the torque and the type of internal bearing. It is not enough for the part number to be similar: you have to compare the data sheet. If you don't have the designation at hand, send us a photo or the main dimensions and we'll help you identify the variant.
To move forward with the quote, message us on WhatsApp with the part number B 203, B 204 or whichever you need, and the quantity. At MR Accesorios Industriales we'll reply shortly with the technical and commercial information. You can also inquire about other freewheels and power transmission components we supply.
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 designation B 203, B 204, etc. mean?
- The letter B identifies the series and the three-digit number indicates the size. Each part number has its own dimensions and capacity. To find out which one corresponds to your equipment, send us the full part number or the mounting dimensions and we'll advise you.
- How do I choose between the different sizes in the B series?
- You need to know the torque to be transmitted, the speed and the shaft diameter. With that data the size is defined. If you don't have the data sheet, message us on WhatsApp and we'll help you gather the information needed to select.
- Do you have equivalents from other brands?
- We can evaluate alternatives from other brands, but interchangeability is not automatic: you have to compare dimensions, torque and bearing type. Send us the original part number and the operating conditions to verify the equivalence.

