
SKF PER.308RRRB50 y-bearing (insert bearing)
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Y-bearing (insert bearing)
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Description
SKF PER.308RRRB50 belongs to y-bearing (insert bearing), part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for PER.308RRRB50 and any equivalents.
The SKF PER.RRRB is a Y-series insert bearing that features a spherical outer ring and a set screw locking system. It mounts in split plummer block or flanged housings and is intended for shafts turning at moderate speeds under moderate loads, as found in conveyors, fans, and agricultural equipment. The design permits initial alignment and locks quickly onto the shaft.
In the SKF designation, PER identifies the insert type and RRRB covers construction details such as sealing and locking. The bore size is included in the model code: PER.308RRRB50, for example, has a 50 mm bore. Reading the code this way helps you match the exact spare part before you order.
Typical installations include belt conveyors, bucket elevators, mixers, fans, and machines in the food, cement, and agricultural sectors. The bearing handles radial loads and a degree of misalignment, so it suits shafts that do not demand extreme precision. It also appears in textile machinery and in power transmission systems at aggregate processing plants.
Selection starts with shaft diameter, load type, and operating environment. Confirm that the housing accepts the spherical outer ring and that set screw locking fits your setup. At mounting, keep the shaft clean and free of burrs, then tighten the screws to the recommended torque. Correct lubrication and alignment support bearing service life.
SKF Y-bearings can be interchanged with other brands that follow the same dimension standard, but tolerances and seal type may differ between manufacturers. Have a specialist check compatibility before substituting one brand for another; our team can review the part number with you.
To request a PER.RRRB Y-bearing or confirm the exact size, send the part number by WhatsApp or email. We reply promptly, suggest equivalents, and help you choose the right component.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the PER.RRRB designation mean in SKF bearings?
- PER.RRRB is the SKF nomenclature for Y-series insert bearings with a spherical outer ring and set screw locking. PER indicates the insert type, RRRB the sealing and locking features, and the code also carries the bore diameter, as in PER.308RRRB50.
- In what applications is this bearing recommended?
- It suits equipment with rotating shafts at moderate speed and radial loads, such as conveyors, fans, mixers, and agricultural machinery. It mounts in split plummer block or flanged housings and tolerates small misalignments, which is common in demanding industrial environments.
- How should I mount a Y-bearing to ensure its operation?
- Clean the shaft and check for burrs. Seat the bearing in the housing and tighten the set screws to the recommended torque. Adequate lubrication and correct alignment help avoid additional loads that reduce service life.

