Product page
Pillow block bearing SEALMASTER SP-20R
- Manufacturer Part Number
- SP-20R
- Brand
- SEALMASTERBrand we market
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- SP
![]()
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
SEALMASTER SP-20R is a pillow block bearing reference, within Bearing housings. Request a quote for SP-20R via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SP pillow block with SEALMASTER insert bearing is a mounted pillow block bearing, ready to bolt to a flat base and support rotating shafts. It is used in equipment that requires a compact, self-aligning unit that is easy to mount, such as conveyor belts, fans, mixers and agricultural machinery. MR Accesorios Industriales supplies this line with technical support so you can choose the right size for your application.
The SP series designation is read from its base code: SP identifies the pillow block with insert bearing, and the number that follows indicates the shaft size. The examples SP-20R and SP-32R show this logic: the number changes according to shaft diameter and the letter R remains part of the nomenclature. To request the correct part number, send us the shaft diameter or the reference marked on the old part.
These pillow blocks are used in industries in Buenos Aires and across the country: food, chemical, cement, grain and metallurgical. They are found in conveyors, bucket elevators, screens, pumps, exhaust fans and process equipment where a bearing unit with a split or one-piece housing is required. Their pillow block format makes mounting on steel structures or concrete bases with through bolts easy.
To select the pillow block, take into account the shaft diameter, the type of load (radial, axial or combined) and the environmental conditions. Check the insert sealing: in dusty or humid environments, a labyrinth or higher-protection seal is advisable. Lubrication must be the one specified for the insert and renewed according to the duty cycle. During mounting, align the pillow block with the shaft and tighten the mounting bolts evenly to prevent distortion.
As for equivalents, the SEALMASTER SP series can be interchanged with other mounted bearing lines from manufacturers such as SKF, FAG or NSK, as long as the shaft dimensions, shaft height and locking type match. A similar part number is not enough: the housing geometry and the insert locking system must be compared. If you have doubts, send us the dimensions or a photo and we will indicate the compatible alternative.
To request a quote for your SP pillow block with SEALMASTER insert bearing, write to us on WhatsApp with the part number SP-20R, SP-32R or the one you need. At MR Accesorios Industriales we reply promptly and advise you so the unit is the right one for your equipment. We can also evaluate variants of the SP series and other pillow block configurations for your application.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 1 1/4 in
Frequently Asked Questions
- How do I choose the right SP pillow block for my shaft?
- You need the shaft diameter, the type of load and the working conditions. With that data we will indicate the corresponding SP part number. If you do not have the measurement, send us a photo or the part number of the old part and we will identify it.
- Is the SP series interchangeable with other brands?
- Yes, it can replace mounted bearings from other brands if the main dimensions match: shaft diameter, mounting height and locking system. Do not rely on the part number alone; compare the geometry or consult us with the dimensions.
- What lubrication does the insert bearing use?
- The insert is factory-lubricated. For maintenance, use the grease recommended by the manufacturer and renew it according to speed and environment. In dusty or humid applications, shorten the intervals and check the sealing.

