Scroll compressors are a small but important segment of the overall compressor market. Their designs and capabilities make them ideal especially for home refrigerators and building comfort-cooling systems that do not require the high performance capabilities of larger twin screw or centrifugal compressor designs.

In a scroll compressor, an orbiting scroll-shaped component moves relative to a similar shaped stationary component inside a housing. On the suction side of the compressor, gas is drawn into the suction opening in the housing and into the cavity produced between the orbiting and stationary scroll components and the housing. As the shaft rotates and moves the orbiting scroll, the cavity begins to decrease in size as it continues to move inwards along the scroll walls. When the cavity reaches the discharge location of the compressor, the compressed gas is discharged through the discharge opening in the housing.

HCH bearings for scroll compressors
The most commonly used bearings in scroll compressors are deep groove ball bearings. Scroll compressor bearings are exposed to refrigerant gases and need to be able to withstand high speeds and high loads while providing high running accuracy and reliability. Decades of research and development in the industry have produced several technological breakthroughs, setting new industry standards for performance.


> Ultra long life
> Increased load capacity
> Long, trouble-free performance
> Elimination of bearing creep

● Data of standard radial clearances for bearings under no load

Bore		C2		Normal		C3		C4		C5
Over	Including
mm	mm	min.	max.	min.	max.	min.	max.	min.	max.	min.	max.
2.5	10	0	7	2	13	8	23	14	29	20	37
10	18	0	9	3	18	11	25	18	33	25	45
18	24	0	10	5	20	13	28	20	36	28	48
24	30	1	11	5	20	13	28	23	41	30	53
30	40	1	11	6	20	15	33	28	46	40	64
40	50	1	11	6	23	18	36	30	51	45	73
50	65	1	15	8	28	23	43	38	61	55	90