
SKF PER.203RPP51-A y-bearing (insert bearing)
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Y-bearing (insert bearing)
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Other brands for this category
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Description
SKF PER.203RPP51-A 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.203RPP51-A and any equivalents.
For maintenance and purchasing teams across the United States and Latin America, the SKF Y-bearing PER. RPP-A series is a ready-to-mount insert with an extended inner ring and set screw locking. It fits into split plummer block, pillow block, or flanged housings, making it a practical choice for machinery that needs a simple rolling unit with solid protection against dust and moisture. MR Industrial Accessories supplies this line and helps you confirm the right size before you order.
Reading the code helps you avoid ordering the wrong insert. In PER.203RPP51-A, the PER. prefix marks the extended inner ring Y-bearing family, RPP signals the double-lip seal with metal shield, and the final A denotes a variant. The numbers and letters that follow tie to shaft diameter and locking style. When you send the full part number, we verify it against the catalog so the fit is correct.
These inserts show up in belt conveyors, packaging lines, mixers, extractors, and process equipment in food, chemical, and aggregate plants. They also work in road and agricultural machinery outdoors, as long as the housing and shaft are sized for the load. The RPP seal handles dusty or damp conditions; if washdowns are frequent, think about extra protection.
Selection starts with shaft diameter and housing type. Y-bearings mount in split plummer block, pillow block, or flanged housings depending on the machine. Tighten the set screws onto the shaft with the correct wrench and check that the inner ring is centered. Lubricate on the duty cycle and confirm housing alignment to prevent side loads.
Equivalents across brands use different nomenclature, but key dimensions often line up. Do not rely on the part number alone: compare shaft diameter, inner ring width, locking method, and sealing. For a cross-reference, send the shaft and housing dimensions and we will point you to the PER. RPP-A option that fits.
MR Industrial Accessories distributes SKF bearings and other power transmission components. If you have PER.203RPP51-A or any part number from this series, message us on WhatsApp or email for a quote. We can also advise on housings and mounting accessories so the installation goes right the first time.
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 RPP mean in this Y-bearing?
- RPP identifies the seal: a double lip with a metal shield that keeps grease in and blocks dust and moisture. It is common on equipment that runs dirty or gets washed often.
- How can I check if this Y-bearing fits my housing?
- Match the shaft diameter and the housing bore type. Y-bearings go into split plummer block, pillow block, or flanged housings depending on the machine. Send us those dimensions and the housing part number, and we will confirm.
- Can this SKF insert replace a Y-bearing from another brand?
- Often yes, because main dimensions tend to match between manufacturers. Still, compare shaft diameter, inner ring width, locking, and sealing. Send us the data and we will verify the interchange.

