
NSK UELFS316-302D1W3 flange bearing 4 holes
- Brand
- NSK
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- UELFS
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Description
NSK UELFS316-302D1W3 belongs to flange bearing 4 holes, 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 UELFS316-302D1W3 and any equivalents.
For power transmission setups that need dependable shaft support, the NSK UELFS series delivers a 4-bolt flanged Y-bearing unit. It pairs a sealed insert bearing with a cast iron housing, making it suitable for equipment where alignment and sealing matter. MR Industrial Accessories LLC supplies this line to industrial buyers across the United States and Latin America.
Reading the UELFS code helps you specify the right unit. UEL identifies the insert bearing, which comes with seals and set screws. FS indicates the square flanged housing. In part numbers like UELFS305-013D1W3 or UELFS306-101D1W3, the digits after the dash relate to shaft diameter and locking options. D1 and W3 suffixes cover sealing and insert variations. Familiarity with this naming structure speeds up selection and replacement.
These units appear in conveyors, mixers, fans, belt systems and agricultural equipment. The 4-bolt flange mounts to flat surfaces and handles radial loads plus moderate axial loads. Because the housing and insert arrive as one assembly, installation is faster than with separate bearings. Typical environments include food processing, cement, tanneries and material handling.
Selection depends on shaft diameter, locking method (set screws or eccentric) and the sealing needed for the site conditions. Mounting requires full contact between flange and surface, with bolts tightened evenly. Lubrication and shaft alignment affect service life. In dusty or damp areas, choose seals with higher protection. MR can help match the unit to your equipment.
NSK UELFS units can interchange with other brands that share the same flange standard and shaft size. For a replacement, check flange dimensions, hole spacing and shaft diameter. If you have a competitor's part number, we can suggest a compatible equivalent. That interchangeability simplifies maintenance and limits downtime.
To get a quote, send the complete part number or the shaft and flange dimensions via WhatsApp or email. We quote the exact part or size you specify. MR responds promptly with the details you need to complete your order.
Dimensions
- Bore
- 3-1/8 in
Frequently asked questions
- What does the UELFS series indicate in NSK housings?
- UELFS designates 4-bolt flanged Y-bearing units with a sealed insert bearing. UEL refers to the insert, FS to the flanged housing. Numbers and suffixes specify shaft diameter plus locking and sealing variants.
- How do I select the correct UELFS housing for my application?
- Consider shaft diameter, locking type, environmental conditions and loads. Verify the flange fits the mounting surface and that sealing suits the environment. We can assist with your equipment details.
- Can I replace a housing from another brand with an NSK UELFS unit?
- Yes, if flange dimensions, hole spacing and shaft diameter match. Interchangeability between brands works when dimensional standards align. Send the original part number and we will identify the equivalent.

