
NSK UKPX18D1;H2318X pillow block bearing
- Brand
- NSK
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- UKPX
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Description
NSK UKPX18D1;H2318X belongs to pillow block bearing, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for UKPX18D1;H2318X and any equivalents.
A UKPX pillow block pairs a cast iron housing with a UK series insert bearing. Two bolts hold the housing to the base, while a taper sleeve grips the shaft, so fitting and later removal are straightforward. Belt conveyors and similar power transmission drives rely on this arrangement when the support has to absorb minor misalignment on its own.
Reading the code is the quickest way to confirm fit. The letters point to a pillow block built around a UK insert; the two digits that follow give the shaft size in millimeters. UKPX05 takes a 25 mm shaft, UKPX06 a 30 mm, UKPX07 a 35 mm, UKPX08 a 40 mm, UKPX09 a 45 mm, UKPX10 a 50 mm, UKPX11 a 55 mm and UKPX12 a 60 mm, with the pattern continuing by code. Where the code carries a D1 suffix, that marks a sealing variant, and the matching H sleeve (H2305X, H2306X and so on) is what lets the unit sit on a commercially toleranced shaft.
Typical duty covers belt conveyors, bucket elevators, mills, mixers and process lines in food, chemical and aggregate operations. The gray cast iron housing carries moderate radial and axial loads, and because the insert can self-align, small differences in height between two supports do not have to be shimmed out. The insert seal keeps dust and moisture away from the rolling elements; where water or washdown is routine, a version with a second seal is the better choice.
Selection comes down to shaft diameter and load type. Shafts at h9 tolerance or looser suit the H taper sleeve. Grease is lithium based from the factory, and the fitting on the housing is the regreasing point. During installation, line up the bolt holes, then tighten the sleeve with its lock nut.
Pillow blocks from other makers that also use an insert bearing with a taper sleeve, such as SKF, FAG or NTN, can be swapped in provided the main dimensions and the fixing method line up. Send the code from another brand and we will quote it, suggesting a compatible option when needed. Split plummer block housings and special parts to drawing are also produced by MR.
For a quote on a UKPX pillow block with NSK insert bearing, message the full code or the shaft and housing dimensions on WhatsApp or by email. We answer promptly and can point you to equivalents or help you choose.
Dimensions
- Bore
- 80 mm
Frequently asked questions
- What does UKPX mean in a pillow block?
- It denotes a pillow block unit fitted with a UK series insert bearing, which is locked to the shaft by a taper sleeve. The digits after the letters give the shaft diameter in millimeters, so UKPX05 is for a 25 mm shaft, UKPX06 for 30 mm, and so on through the code.
- How is the UKPX pillow block mounted on the shaft?
- The insert has a tapered bore that receives the matching H adapter sleeve. Tightening the sleeve lock nut clamps the insert onto the shaft. The housing then goes onto the base with two bolts, with alignment checked before final tightening.
- What applications does the UKPX pillow block have?
- Conveyors, elevators, mills, mixers and process equipment in food, chemical and aggregate plants. The self-aligning insert and its seal suit locations with moderate dust and moisture.

