Cartridge Unit Bearings

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An old-style cup-and-cone bottom bracket.The lockring wrench is about to loosen the lockring, the pin wrench is engaging two of the holes in the adjustable cup.(Some cartridge bearings do use these same tools.) Another article gives instructions on servicing cup-and-cone bottom brackets.: A cartridge bottom bracket. The splined tool is shown above the bottom bracket.


The bearing is encased in rubber for reduced vibration and noise, and it has an extended inner ring on one side for extra shaft support. This bearing cartridge unit is suitable for applications including conveyors, ventilating equipment, and heating and air conditioning equipment, among others.Cartridges. Our cartridges are available in metallic or rubber. The bearing inserts have grade 10 balls and super-finished ball paths to support proper lube film and reduce noise. Metallic Design Attributes. Mounts in straight bore housings. Comes complete with wide inner-ring bearing insert and three-piece “R” seal. 



QM INDUSTRIES QAAMC20A315SB Cartridge Unit Bearings

1.9291 in Uncoated
24100 lb 300

QM INDUSTRIES QAAMC18A308SEN Cartridge Unit Bearings

260 mm Steel
Open 7316574617425

QM INDUSTRIES QAAMC18A307SN Cartridge Unit Bearings

Dry 0.50;Period 200 mm

QM INDUSTRIES QAAMC18A307SET Cartridge Unit Bearings

2.5000 in H715300
H715310, H715311 91000 lbf

QM INDUSTRIES QAAMC18A090SB Cartridge Unit Bearings

4.3307 in Flanged Cup
0.7411 in Uncoated

QM INDUSTRIES QAAMC15A300SN Cartridge Unit Bearings

1 pcs Negotiable

QM INDUSTRIES QAAMC15A215SET Cartridge Unit Bearings

ANSI/ABMA 18.2, Open
M 1 in

QM INDUSTRIES QAAMC15A215SEB Cartridge Unit Bearings

Open Type C4
133mm In Stock

QM INDUSTRIES QAAMC15A215SB Cartridge Unit Bearings

40 mm 3.5313 in
Steel HM 218210

QM INDUSTRIES QAAMC15A075SC Cartridge Unit Bearings

0.00 KGS 0.335
24000 17mm

QM INDUSTRIES QVVMC20V303SN Cartridge Unit Bearings

Static 8000 / D Oilite®, Synthet
1-3/4 in -35 °F to +