Pillow Block Bearings

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Pillow block bearings, sometimes referred to as plummer block bearings, are mounted bearings that are used to provide load support for a rotating shaft. Their mounting surface is on a plane parallel and offset to the axis of the shaft. Mounting holes or slots in the base or feet of pillow block bearings permit adjustment and easy mounting.

Pillow block bearings are constructed of a housing and a bearing. Many pillow blocks have a replaceable bearing, referred to as an insert bearing. Bearings used with pillow block housings usually are self- aligning to compensate for angular misalignments.

Adjustment of a misaligned shaft can occur in any direction and allows centering and alignment without distorting seals. Pillow block bearing units include a hollow set screw for easy and firm attachment on a shaft and a one-piece housing for structural strength.

Bearing Number	Bore Dia	Outer DIa	Width	Size
3.188 Inch \| 80.975 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.75 Inch \| 95.25 Millimeter QM INDUSTRIES QAPR18A303SO Pillow Block Bearings	Open Type	Single Row	Punching	Flat
3.188 Inch \| 80.975 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.75 Inch \| 95.25 Millimeter QM INDUSTRIES QAPR18A303SN Pillow Block Bearings	Pillow Type	J7	Steel plate cover mo	No Cover
2.938 Inch \| 74.625 Millimeter x 4.74 Inch \| 120.396 Millimeter x 3.25 Inch \| 82.55 Millimeter QM INDUSTRIES QAAPF15A215SEO Pillow Block Bearings	2.84 kg	100 °C	M6x1	-20 °C
3.5 Inch \| 88.9 Millimeter x 5.18 Inch \| 131.572 Millimeter x 3.75 Inch \| 95.25 Millimeter QM INDUSTRIES QAAPF18A308SEO Pillow Block Bearings	No	35 ～ 50	Electroless Nickel P	Bearings with Housin
3.188 Inch \| 80.975 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.75 Inch \| 95.25 Millimeter QM INDUSTRIES QAPR18A303SEC Pillow Block Bearings	SH33M	Bearing Steel	No	9 Days or more
3.688 Inch \| 93.675 Millimeter x 4.61 Inch \| 117.094 Millimeter x 4.921 Inch \| 125 Millimeter QM INDUSTRIES QASN20A311SO Pillow Block Bearings	Deep Groove Ball Bea	304 Stainless Steel	Available	6
3.75 Inch \| 95.25 Millimeter x 4.61 Inch \| 117.094 Millimeter x 4.921 Inch \| 125 Millimeter QM INDUSTRIES QASN20A312SB Pillow Block Bearings	SCOE204-20	33.3 mm	20 mm	0.71 kg
4.938 Inch \| 125.425 Millimeter x 7.44 Inch \| 188.976 Millimeter x 5.5 Inch \| 139.7 Millimeter QM INDUSTRIES QAAPF26A415SO Pillow Block Bearings	-20 °C	116 mm	14 mm	60 mm
3.346 Inch \| 85 Millimeter x 4.03 Inch \| 102.362 Millimeter x 3.74 Inch \| 95 Millimeter QM INDUSTRIES QAPR18A085SN Pillow Block Bearings	15 kN	29 mm	1.85	11 mm
3.937 Inch \| 100 Millimeter x 4.606 Inch \| 117 Millimeter x 4.921 Inch \| 125 Millimeter QM INDUSTRIES QASN20A100ST Pillow Block Bearings	Radial	240	With Outer Ring	Punching
4.438 Inch \| 112.725 Millimeter x 6.25 Inch \| 158.75 Millimeter x 4.75 Inch \| 120.65 Millimeter QM INDUSTRIES QAAPF22A407SO Pillow Block Bearings	Bearing Steel	No	34100	No
3.937 Inch \| 100 Millimeter x 4.606 Inch \| 117 Millimeter x 4.921 Inch \| 125 Millimeter QM INDUSTRIES QASN20A100SO Pillow Block Bearings	Not Provided	15	62	20 ～ 40