With the cross-roller ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90°V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity and the precision can reach up to P5,P4,P2, despite the minimum possible dimensions of the inner and outer rings.

2. Following are the boundary dimiensions of the CRB series:

NO.	Boundary dimiensions       (mm)
	Inner diameter	Outer diameter	Width
	d	D	B
CRB3010	30	55	10
CRB4010	40	65	10
CRB5013	50	80	13
CRB6013	60	90	13
CRB7013	70	100	13
CRB8016	80	120	16
CRB9016	90	130	16
CRB10020	100	150	20
CRB11020	110	160	20
CRB12025	120	180	25
CRB13025	130	190	25
CRB14025	140	200	25
CRB15025	150	210	25
CRB15030	150	230	30
CRB20025	200	260	25
CRB20030	200	280	30
CRB20035	200	295	35
CRB25025	250	310	25
CRB25030	250	330	30
CRB25040	250	355	40
CRB30025	300	360	25
CRB30035	300	395	35
CRB30040	300	405	40
CRB40035	400	480	35
CRB40040	400	510	40
CRB40070	400	580	70
CRB50040	500	600	40
CRB50050	500	625	50
CRB50070	500	680	70
CRB60040	600	700	40
CRB60070	600	780	70
CRB600120	600	870	120
CRB70045	600	815	45
CRB70070	700	880	70
CRB700150	700	1020	150
CRB80070	700	950	70
CRB800100	800	1030	100

3.We, KML Bearing and Equipment Limited (Formly known as Premier Bearing and Equipment Limited) specializes in producing and dealing in its own brand-name, KML, premium quality bearings. Since its establishment in Hong Kong in 1980, it has been one of the leading companies to export China made bearings to markets all over the world.We provide bearings, auto parts,truck and trailer parts and so on .If you are interested in our products, contact us.