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
120 mm x 180 mm x 85 mm NTN SA1-120B plain bearings	NJ203	17x40x12	17	40
120,65 mm x 187,325 mm x 105,562 mm FBJ GEZ120ES plain bearings	68/750	750x920x78	750	920
30 mm x 47 mm x 22 mm ISB SI 30 C plain bearings	6803-2RS	17x26x5	17	26
INA GE70-AX plain bearings	68/600	600x730x60	600	730
10 mm x 22 mm x 14 mm INA GAKR 10 PW plain bearings	68/670	670x820x69	670	820
50,8 mm x 55,563 mm x 38,1 mm SKF PCZ 3224 M plain bearings	779/772	98.425x180.975x47.625	98,425	180,975
10 mm x 12 mm x 17 mm INA EGF10170-E40 plain bearings	6808ZZ	40x52x7	40	52
101,6 mm x 158,75 mm x 88,9 mm LS GEZ101ES-2RS plain bearings	6703	17x23x4	17	23
10 mm x 19 mm x 9 mm INA GK 10 DO plain bearings	4T-30305DF	25	62	25 mm
260 mm x 370 mm x 150 mm INA GE 260 UK-2RS plain bearings	6705	25x32x4	25	32
260 mm x 400 mm x 205 mm INA GE 260 FO-2RS plain bearings	NNU 4960 K	300x420x118	300	420
IKO LHS 20 plain bearings	6800ZZ	10x19x5	10	19