Bearing housings
Flanged and plummer block housings, inserts
The full catalogue holds 1644 more items brought in to order.
Delivery in approx. 10 working days, full technical documentation. Available to business customers.
1825–1872 z 2026
Bearing housings
About this category
- Use
- a complete bearing unit with no housing machining
- Locking
- grub screw or eccentric collar
- Housing types
- pillow block (P), flanged (F, FL), take-up (T)
- Sealing
- factory-fitted, pre-greased
A bearing housing is a complete assembly: body, bearing, seal and shaft locking in one. Instead of machining a seat into the structure, you bolt the housing to the frame. Hence their popularity in conveyors, fans, agricultural machinery and every welded structure where a precise seat would be expensive.
The main types are plummer blocks (bolted from below, type P) and flanged units (bolted to a wall or face plate, types F and FL). Inserts usually have a self-aligning outer surface, so they absorb small alignment errors — which saves many welded structures.
What to look at when selecting
- 01Mounting: plummer block for support from below, flanged unit for bolting to a wall or plate.
- 02Shaft locking: set screws are cheaper, an eccentric collar copes better with reversing rotation.
- 03Body material: cast iron for stationary machines, pressed steel for light structures, thermoplastic for wet environments.
- 04Sealing and the option to re-grease — in dusty conditions a grease nipple is worth its price.
Read next
- Plummer block, flanged or pressed steel housingOne thing decides the housing type: where the surface you bolt it to actually is. Everything else — split or solid, cast or sheet steel, how the bearing grips the shaft — comes after that.
- Choosing a housing when all you know is the shaftThe plate is worn, the bearing designation is unreadable and the machine is down. What is left is a caliper. Here is the path from a measured shaft to a specific housing — and the traps along the way.
- SNI or SD — which split housing to chooseBoth are split, both take a spherical roller bearing on an adapter sleeve. They differ in the standard they follow, the seat tolerance, the seal supplied as standard and how much they carry. Here are the differences that actually decide.
- Housing seals: felt, lip, labyrinth, taconiteThe seal decides how long the bearing lives — not the housing. You pick it from two numbers: the shaft's circumferential speed and the operating temperature. The rest is the environment.
Common questions
- What is the difference between UCP and UCF?
- The same bearing insert in different bodies. UCP is a plummer block bolted to the frame from below, with the shaft parallel to the base. UCF is a square flanged unit bolted with four screws to a wall or plate, with the shaft perpendicular to it. UCFL is the two-bolt oval flanged version.
- Can the insert be replaced while keeping the body?
- Yes, and that is the usual practice — a cast iron body outlives several inserts. One condition: check that the seat in the body is not worn, because a loose insert will start turning in the housing and destroy it within weeks.