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Sprockets and gears SKF PHS 120H-3B17
- Manufacturer Part Number
- PHS 120H-3B17
- Brand
- SKFOfficial brand
- Category
- Power transmission
- Subcategory
- Sprockets and gears
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Description
SKF PHS 120H-3B17 is a sprockets and gears reference, within Power transmission. Request a quote for PHS 120H-3B17 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF PHS series sprockets are chain wheels for high-pitch roller chains, manufactured from high-strength steel with heat treatment to withstand high loads. They are used in drives that require synchronization and durability, such as mills, elevators and conveyors. MR Accesorios Industriales carries this line as part of its power transmission offering, with technical advice to choose the correct configuration according to pitch, number of teeth and bushing type.
The PHS series designation is read in blocks: the number after PHS indicates the chain pitch in eighths of an inch, the letter H defines the high-pitch chain type, the number after the hyphen indicates the number of strands (single, double or triple) and the letter B with the final number corresponds to the taper bushing diameter. For example, in PHS 120H-3B17, 120 refers to the pitch, H to the chain type, 3 to three strands and B17 to the bushing. Knowing this structure prevents errors when ordering a replacement.
These sprockets are used in industries such as food, cement, mining and material handling. In Argentina they are commonly found in bucket elevators, drag conveyors, flour mills and bottling equipment. Their robust construction allows power transmission under dusty, humid or moderately hot conditions, provided the pitch and number of teeth are suitable for the speed and load of the system.
To select the correct sprocket, take into account the chain pitch, the number of teeth, the number of strands and the bushing type. Mounting with a taper bushing makes adjustment and removal easier without hammering the part. Check the alignment between sprocket and chain, and ensure proper lubrication to reduce wear. If the equipment operates with pulsating loads, choose a number of teeth that distributes the stress better and prevents chain jumping.
SKF PHS series sprockets can be interchanged with those from other manufacturers that follow the same pitch standard and bushing configuration, as long as the pitch, number of teeth and bushing diameter match. A similar code is not enough: the critical dimensions must be compared. At MR Accesorios Industriales we can help you validate the equivalence before buying.
If you already have the sprocket part number, send it by WhatsApp to MR Accesorios Industriales and we will quote the part. We can also advise you if you need to replace a worn sprocket or adapt an existing drive. We work with in-house manufacturing and other brands to give you a reliable solution.
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 code PHS 120H-3B17 mean?
- The code indicates the chain pitch, the high-pitch chain type, the number of strands and the taper bushing diameter. In this case, 120 is the pitch, H the type, 3 the strands and B17 the bushing. With that data the part is identified.
- How do I know if an SKF sprocket is compatible with my machine?
- You have to compare the chain pitch, the number of teeth, the number of strands and the bushing diameter. If they match, the sprocket is interchangeable. If you have doubts, send us the measurements or the code and we will advise you.
- What lubrication do you recommend for these sprockets?
- Lubrication depends on speed and load. In general, oil or grease for high-pitch chains is used, applied regularly. A suitable lubricant film reduces wear and extends the life of the sprocket and the chain.

