
LINK-BELT FCU331 flange bearing 4 holes
- Brand
- LINK-BELT
- Category
- Bearing housings
- Subcategory
- Bearing housings
- Series
- 300
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Tell us the quantity you need and request a quote by WhatsApp or email.
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
LINK-BELT FCU331 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 FCU331 and any equivalents.
The LINK-BELT FCU is a 4-bolt flange mounted bearing unit in series 300. Bearing and housing come as one assembly that fastens to the frame through four bolt holes, holding the shaft in place where a compact, rigid face mounting is needed. MR Industrial Accessories LLC supplies this line for power transmission and conveying equipment across the United States and in several Latin American countries.
In the FCU code, the letters mark the 4-bolt flange housing family, while the number that follows places the unit within series 300 and tracks the shaft size it fits. Letters appearing after the number point to build variations, typically the seal style or how the housing is put together. The quickest way to confirm a code is to send the full model by WhatsApp or email and let the team quote it.
Typical installations include belt conveyors, bucket elevators, mixers, mills, screens, pumps and fans running horizontal or face-mounted shafts. Because the four-bolt flange bolts straight to sheet metal or structural steel, no machining of the housing is required, which keeps assembly and replacement simple in food, cement, mining, aggregate and water treatment plants.
When selecting a unit, work from the shaft diameter, the load type and the direction of the forces. The 4-bolt pattern spreads the fastening evenly and holds it steady. Match the sealing to the site: dust, water or frequent washdowns call for tighter protection. Use the lubricant specified for the mounted bearing, and check that the flange lines up with the shaft so no parasitic forces appear. At installation, tighten the bolts in a cross pattern, in stages.
Flange housings from other manufacturers use their own part numbering, and a swap is not automatic. Shaft diameter, hole spacing, flange diameter, center height and seal type all have to line up. Share those figures with MR Industrial Accessories LLC and the team will point to a compatible option from LINK-BELT or from another line the company carries, so the machine does not need to be modified.
If an FCU series 300 unit is what you need, send the code or the model from the equipment nameplate by WhatsApp or email. The team replies promptly, and if you are after a variant you cannot find, write in with the code or model and they will identify the matching option.
Dimensions
- Bore
- 1 15/16 in
Frequently asked questions
- What does FCU stand for in LINK-BELT housings?
- FCU is the designation for LINK-BELT's 4-bolt flange housing line. The following number gives the size within series 300 and is tied to the shaft diameter. Any additional letters indicate sealing or housing variations.
- How do I pick the right FCU housing for my equipment?
- You need the shaft diameter, the flange hole spacing, the flange outer diameter and the center height, plus the environment to determine the sealing. Send that information or the code of the existing housing on WhatsApp and the team will quote it.
- Can a housing from another brand be replaced with a LINK-BELT one?
- Yes, provided the mounting dimensions match: shaft diameter, hole spacing, flange diameter and center height. A similar number alone is not enough. Send the dimensions or the model and MR will identify a compatible alternative.

