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
AST GEGZ88ES-2RS plain bearings	B300-7	300x360x25	300	360
6 mm x 16 mm x 9 mm INA GAKFR 6 PW plain bearings	33028JR	140x210x56	140	210
AST AST090 12070 plain bearings	6415	75x190x45	75	190
20 mm x 55 mm x 14,3 mm SIGMA GE 20 AX plain bearings	6313Z	65x140x33	65	140
Toyana TUP1 75.30 plain bearings	6820N	100x125x13	100	125
16 mm x 35 mm x 16 mm NMB MBY16CR plain bearings	6700	10x15x3	10	15
20 mm x 35 mm x 24 mm SKF GEM 20 ES-2RS plain bearings	68/900	900x1090x85	900	1090
AST GEG10N plain bearings	6801ZZ	12x21x5	12	21
65 mm x 105 mm x 55 mm LS GEF65ES plain bearings	6801	12x21x5	12	21
110 mm x 160 mm x 70 mm NTN SA1-110BSS plain bearings	635ZZ	5x19x6	5	19
69,85 mm x 74,613 mm x 88,9 mm SKF PCZ 4456 E plain bearings	687	7x14x3.5	7	14
90 mm x 95 mm x 100 mm SKF PCM 9095100 M plain bearings	63/32	32x75x20	32	75