plain bearings

Function Plain bearings support and guide moving components inside the engine. Their primary purpose is to facilitate the virtually wear-free rotation of these components. Plain bearings comprise one or two bearing shells which are locked firmly in place in the bearing seat. The bearing shells wrap around the rotating shaft at the bearing journals.The wear on a plain bearing engine occurs when the engine is first started. On startup there is no oil flow or oil pressure so there is a minute amount of wear before the oil pressure comes up. Plain Bearings with no bushing are usually used for the camshaft in the cylinder head. There are several ways they are used.

Plain Bearings. The earliest blocks used plain bearings, but they have slowly given way to higher-performing bearings. Plain bearings have the least number of moving parts. A long lifespan and low maintenance with heavy load applications are the main benefits of plain bearings.

Bearing Number	Bore Dia	Outer DIa	Width	Size
INA GE440-DW plain bearings	6800ZZ	10x19x5	10	19
SKF SAA50ES-2RS plain bearings	6800-2RS C3	10x19x5	10	19
AST AST11 WC38 plain bearings	6801-2RU	12x21x5	12	21
AST GEEW60ES plain bearings	4T-539/532X	53.975x107.95x36.512	53,975	107,95
AST GAC55T plain bearings	6702-2RS	15x21x4	15	21
20 mm x 46 mm x 20 mm NMB SBT20 plain bearings	681	1x3x1	1	3
AST ASTT90 22060 plain bearings	6806ZE	30x42x7	30	42
AST ASTEPB 1012-18 plain bearings	6707ZZ	35x44x5	35	44
12 mm x 26 mm x 16 mm INA GE 12 PB plain bearings	6801	12x21x5	12	21
300 mm x 430 mm x 165 mm ISO GE 300 ES-2RS plain bearings	682 ZZ	2x5x2.3	2	5
75 mm x 80 mm x 60 mm INA EGB7560-E40 plain bearings	6802ZZ	15x24x5	15	24
AST AST090 2825 plain bearings	7032 A-UX	160x240x76	160	240