SKF SYFJ 504 y-bearing unit
- Brand
- SKF
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
SKF SYFJ 504 belongs to y-bearing unit, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for SYFJ 504 and any equivalents.
The SKF SYFJ Y-bearing unit is a ready-to-mount assembly that pairs a cast iron housing with an insert ball bearing. It is designed for guiding rotating shafts in applications that call for a compact, self-aligning solution with straightforward maintenance. MR Industrial Accessories LLC supplies this line to customers throughout the United States and Latin America, offering selection support and equivalent recommendations.
The SYFJ code denotes a square flange housing from the Y series. The letters specify the housing style and the insert's locking method, while the trailing number (such as 504, 505, or 509) corresponds to a shaft diameter according to the manufacturer's table. To select the right unit, match that number with your actual shaft size and confirm the insert's locking type. If you need help decoding the nomenclature, send the full part number to our team.
These units are common in belt conveyors, packaging equipment, mixers, fans, centrifugal pumps, and transmission lines across food, chemical, and materials processing plants. The square flange bolts to sheet metal or structural profiles with four fasteners, which simplifies installation and field replacement. The cast iron housing stands up to dust and vibration in demanding environments.
When choosing a housing, verify that the shaft diameter aligns with the part number and that the expected radial and axial loads fall within the insert's capacity. The insert bearing's seal guards against dust and splashes; in heavily contaminated areas, extra protection is recommended. During mounting, seat the flange flat, tighten the screws in a cross pattern, and confirm the shaft turns freely. Lubrication is typically permanent, though severe conditions may require replenishment.
Y-bearing units are interchangeable among manufacturers that follow the same mounting standard and shaft diameter. When replacing a unit, compare the shaft diameter, flange hole spacing, and insert locking type (set screw, eccentric, or adapter). A similar part number alone is not sufficient—actual interchangeability depends on those dimensions. If uncertain, send a photo of the part and your shaft measurements.
For a replacement SYFJ housing, contact us via WhatsApp or email with the complete part number (e.g., SYFJ 504, SYFJ 505, or SYFJ 509) and your shaft measurements. MR Industrial Accessories LLC will provide a quote and help you confirm the correct unit.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- How do I determine which SYFJ part number fits my shaft?
- The number following SYFJ relates to the shaft diameter per the manufacturer's table. Measure your shaft with a caliper and cross-reference that value with the designation. If you lack the table, send us the measurement and the old part number via WhatsApp, and we will confirm the equivalent.
- Is the insert bearing pre-lubricated?
- Yes, inserts in this family typically come with permanent lubrication for normal conditions. In dusty, humid, or high-temperature environments, lubricant may need to be replenished. Ask us about the maintenance schedule for your specific application.
- Can I replace just the insert, or must I change the entire housing?
- Generally, the insert can be removed and replaced separately if the housing remains in good condition. Ensure the new insert has the same shaft diameter and locking type. If the housing is dented or deformed, replacing the complete unit is advisable.