
LINK-BELT PKB22631FH flange bearing 4 holes
- Brand
- LINK-BELT
- Category
- Bearing housings
- Subcategory
- Bearing housings
- Series
- B22600
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Description
LINK-BELT PKB22631FH 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 PKB22631FH and any equivalents.
The PKB FH from LINK-BELT is a four-bolt flange mounted unit: an insert bearing fitted into a cast iron housing, designed to hold a rotating shaft against a flat surface. The shaft runs at a right angle to the mounting face, and the unit carries radial load. MR Industrial Accessories supplies this brand and helps customers match the right unit to their shaft and application.
Reading the code is straightforward once you know the blocks. PKB tells you it is a four-bolt flange unit. The number that follows points to the B22600 series and the insert bearing size. FH covers the housing style and the sealing arrangement. As shaft sizes go up, the number in the code changes accordingly, so the full designation always points to one specific unit.
You will find these units on belt and chain conveyors, bucket elevators, mixers, screens and other process equipment in food, chemical and aggregate operations. They also suit fans and horizontal-shaft centrifugal pumps. Because the four-bolt flange bolts straight to sheet metal or structural profile, no machined housing is required, which keeps installation simple.
Selection starts with the shaft diameter, then the flange bolt spacing has to line up with your structure. Look at the sealing as well: dusty or wet areas call for a variant with a reinforced seal. The insert bearing comes with normal internal clearance and general-purpose grease. When mounting, seat the flange flat, tighten the four bolts in a cross pattern, and verify shaft alignment before start-up.
Several brands offer flange mounted units, each with its own nomenclature. What determines interchangeability is the shaft dimension, the flange bolt spacing and the housing outside diameter, not the code itself. If your equipment runs another brand, send those three figures and we will point you to the LINK-BELT equivalent or the option that fits your case.
Have the code on hand? Send it by WhatsApp or email and we will quote it promptly. If the code is missing, a photo of the nameplate or the shaft and flange measurements is enough for us to identify the unit. We can also review sealing or material variants based on where the bearing will work.
Dimensions
- Bore
- 1 15/16 in
Frequently asked questions
- How do I interpret a PKB FH bearing code?
- PKB means four-bolt flange bearing. The number refers to the B22600 series and the insert bearing size. FH identifies the housing and sealing variant. The complete code points to one unit. Send it by WhatsApp or email and we will quote it.
- What do I need to pick the right bearing for my shaft?
- Measure the shaft diameter and the flange bolt spacing on your structure. With those two figures, plus the load type and working environment, we can indicate the correct LINK-BELT unit. The old code also helps if you have it.
- Can another brand replace it?
- Yes. Interchangeability comes down to dimensions: shaft diameter, bolt spacing and housing outside diameter. The code does not have to match. Send us those figures and we will indicate the compatible alternative we supply.

