RA Crossed Roller Bearings

RA cross roller bearing is outer Ring separable type and inner ring rotation design . RA type cross roller bearing is a compact cross roller bearing with the inner and outer ring thickness reduced to the limit. RA series bearings are thin-walled cross roller bearings with reduced inner outer ring thickness. The thin size design is conducive to the lightweight design of related structures. The integral structure of the inner ring is suitable for occasions with high inner ring rotation accuracy, and the stable rotation accuracy reaches micron level; it is suitable for applications requiring high precision and high rigidity such as precision testing instruments, robot joints, direct drive torque motors, and high-precision turntables.

Product Details

Bearings	Dimension				Basic Load Rating (Radial)		Weight
	Inner Diameter	Outside Diameter	Pitch Diameter	Height	Basic Load Rating (Radial)		Weight
	Inner Diameter	Outside Diameter	Pitch Diameter	Height	C	C0	Mass
	d	D	dp	BB1	kN	kN	kg
RA5008	50	66	57	8	5.1	7.19	0.08
RA6008	60	76	67	8	5.68	8.68	0.09
RA7008	70	86	77	8	5.98	9.8	0.1
RA8008	80	96	87	8	6.37	11.3	0.11
RA9008	90	106	97	8	6.76	12.4	0.12
RA10008	100	116	107	8	7.15	13.9	0.14
RA11008	110	126	117	8	7.45	15	0.15
RA12008	120	136	127	8	7.84	16.5	0.17
RA13008	130	146	137	8	7.94	17.6	0.18
RA14008	140	156	147	8	8.33	19.1	0.19
RA15008	150	166	157	8	8.82	20.6	0.2
RA16013	160	186	172	13	23.3	44.9	0.59
RA17013	170	196	182	13	23.5	46.5	0.64
RA18013	180	206	192	13	24.5	49.8	0.68
RA19013	190	216	202	13	24.9	51.5	0.69
RA20013	200	226	212	13	25.8	54.7	0.71

RA Crossed roller bearings are designed to bear radial loads, axial loads, moment loads and other loads in all directions because their cylindrical rollers are arranged perpendicularly to each other on a 90° V-groove rolling surface through a spacer. The cross roller ring has high rigidity, so it is most suitable for the joints or rotating parts of industrial robots, rotary tables of machining centers, rotating parts of manipulators, precision rotary tables, medical machines, measuring instruments, IC manufacturing devices, etc.

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