RA Series Crossed Roller Bearings

Raydafon Group's RA Series Crossed Roller Bearings deliver ultra-precise motion control for high-load applications like robotics and CNC machines. Featuring a compact crossed roller design, they ensure rigidity, accuracy, and durability. Ideal for engineers seeking reliability, they enhance performance and reduce downtime. Choose Raydafon for superior technology that stands out with smooth, stable operation.

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Product Description

RA Series Crossed Roller BearingsRA series cross roller bearing is a kind of small size and light weight cross roller bearing in which the wall thickness is thinner. It can be suited for the hand location of the robots used in the rotary area. It is small and can withstand a heavy load. So bearing housing and presser flange can be lightweight.

Series Introduction

Features: Split outer ring, integrated inner ring, Ultra-thinInner Diameter: 50-200mm Outer Diameter: 66-226mmWidth: 8-13mm Weight: 0.08-0.71kgPrecision: P5, P4, P2High rigidity: This series of bearing have to preloadHigh load: Can bear double-direction axial load, radial load, and tilting momentSmall size: This series bearing can save space for machine tools

Technical data

Designation	Main dimensions			Roller pitch circle diameter	Chamfer	Shoulder height		Basic load rating (radial）		Mass
	inner ring	outer ring	width B /B1	Roller pitch circle diameter	Chamfer	Shoulder height		Basic load rating (radial）		Mass
	d(mm)	D(mm)	(mm)	DP (mm)	r(min)	ds	Dh	C(kN)	C0(kN)	kg
RA5008	50	66	8	57	0.5	53.5	60.5	5.1	7.19	0.08
RA6008	60	76	8	67	0.5	63.5	70.5	5.68	8.68	0.09
RA7008	70	86	8	77	0.5	73.5	80.5	5.98	9.8	0.1
RA8008	80	96	8	87	0.5	83.5	90.5	6.37	11.3	0.11
RA9008	90	106	8	97	0.5	93.5	100.5	6.76	12.4	0.12
RA10008	100	116	8	107	0.5	103.5	110.5	7.15	13.9	0.14
RA11008	110	126	8	117	0.5	113.5	120.5	7.45	15	0.15
RA12008	120	136	8	127	0.5	123.5	130.5	7.84	16.5	0.17
RA13008	130	146	8	137	0.5	133.5	140.5	7.94	17.6	0.18
RA14008	140	156	8	147	0.5	143.5	150.5	8.33	19.1	0.19
RA15008	150	166	8	157	0.5	153.5	160.5	8.82	20.6	0.2
RA16013	160	186	13	172	0.5	165	179	23.3	44.9	0.59
RA17013	170	196	13	182	0.8	175	189	23.5	46.5	0.64
RA18013	180	206	13	192	0.8	185	199	24.5	49.8	0.68
RA19013	190	216	13	202	0.8	195	209	24.9	51.5	0.69
RA20013	200	226	13	212	0.8	205	219	25.8	54.7	0.71

RA Series Cross Roller Bearing Features

Compact, Highly Rigid Swivel Bearings, Achieving a Superb Rotation Accuracy

High-speed capability
Reduce shaft length and processing costs; thermal expansion causes little changes in geometric dimensions.
Adopt nylon divider, low moment of inertia, low starting torque, easy-to-control angle indexing
Optimized pre-tightening force, high rigidity, high precision of guiding roller operation
Carburized steel provides excellent impact resistance and surface abrasion resistance.
Simple but well lubricated

RA Series Cross Roller Bearing Applications

It is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments, and IC manufacturing machines.

FAQ

Q. Are you a trading company or a manufacturer?

A: We are a manufacturer.Q: How long is your crossed roller bearings delivery time?

A: Generally, it is 3-5 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, according to quantity.Q: Do you provide samples for crossed roller bearings? Is it free or extra?A: Yes, we could offer the sample for free but do not pay the freight cost.Q: Could you accept OEM and customize crossed roller bearings?A: We can customize it for you according to the sample or drawing.Q: What are your terms of payment?A: Payment<=1000USD, 100% in advance.Payment>=1000USD, 30% T/T in advance ,pay the balance before shippment.Q: Will you check these products before shipment?A: Our factory QC Process System will strictly inspect products before shipment. We have a professional QC team.Q: What will we do if you are unsatisfied with the product?A: If you have any abnormalities, please get in touch with us for the first time, and we will immediately process them.If you need crossed roller bearings or any models of bearings, please contact me!

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