How are pillow block bearings measured?
The height to shaft Center can be found by measuring from the mounting face of the bearing to the
A pillow block bearing consists of a mounting bracket (pillow block) that houses a bearing and is used in low-torque, light load applications. With this configuration, the pillow block is bolted to a foundation, securing it, while the shaft and the inner ring of the bearing are free to rotate.
With the pillow block mounted to the shaft. Note how easily the linear bearing rotates on the shaft
How to measure bearings - YouTube
High Performance: Roller pillow blocks offer dynamic load ratings that range from 800 to 12,500 pounds, and a low coefficient of friction that helps to achieve speeds up to 25 feet/second.
- If Declination is East. True Bearing(T.B) = [Magnetic Bearing(M.B) + Declination]
- If Declination is West. True Bearing = [Magnetic Bearing – Declination]
- Load characteristics and magnitude.
- Temperature distribution in operating.
- Bearing internal clearance.
- Surface finish, material and thickness of shaft and housing.
- Mounting and dismounting methods.
- Necessity to compensate for shaft thermal expansion at the fitting surface.
- Bearing type and size.
X and Y are factors required for the calculation of equivalent dynamic bearing load for single and double row deep groove ball bearing, dependent upon axial load (Fa) and radial load (Fr). Therefore, if Po < Fr, P = Po = Fr. Po = Axial load and is equal to Po = 0.6Fr + 0.5Fa.
They are a type of housed bearing unit. These could have different types of bearings such as ball bearing, cylindrical bearing, tapered roller or synthetic bushing. They are sometimes identified as “Pummel blocks”, although they are marginally different in their construction.
Plummer blocks and pillow blocks have a similar design and both use the same types of bearing but they do differ in respect to their applications. Pillow blocks are used for more lightweight applications and plummer blocks are used to transfer high power and support heavy industrial loads.
How many types of bearing blocks are there?
The Different Types of Bearing Housing. Housings are available in many sizes and generally fall into five standard categories: Split Plummer (or pillow) block housings, Non-split Plummer block housings, flanged housings, take-up housings, and two-bearing housings.
The plummer block, which is an assembly comprising of a self-aligning ball bearing or spherical roller bearing placed in bearing boxes of various shapes, has a large load capacity and is easy to handle, therefore it is widely used in general industrial machinery such as conveyors.
