NRXT25030DD Crossed Roller Bearing

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NRXT25030DD

Bore Diameter:250 mm

Outside Diameter:330 mm

Width:30 mm

Weight:7.65 kg

The NRXT25030DD bearing is a Cross roller bearing with an inner diameter of 250 mm , an outer diameter of 330 mm, a width of 30 mm. It typically uses P4 grade precision tolerances and ZZ type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

250 mm

Outside Diameter:

330 mm

Thickness:

30 mm

Weight:

7.65 KG

Specifications:

Structure:

Cross roller bearing

Precision Rating:

Bearing Material:

GCR-15

Seals Type:

Transaction Information:

Payment term:

Delivery time:

2-3 days

Detailed description

NRXT25030DD Crossed Roller Bearing 250X330X30mm

Technical:

Model	D(mm)	B(mm)	r(min)	r(min)	Cr kN	Cor kN	Kg
NRXT2508DD	25	41	8	0.6	4	4.4	0.05
NRXT4010DD	40	65	10	0.6	7.7	9.85	0.14
NRXT5013DD	50	80	13	0.6	16.4	20.9	0.26
NRXT6013DD	60	90	13	0.6	17.9	24.6	0.3
NRXT7013DD	70	100	13	0.6	19.3	28.4	0.34
NRXT8013DD	80	110	13	0.6	20.5	32	0.38
NRXT8016DD	80	120	16	0.6	29.8	42.5	0.67
NRXT9016DD	90	130	16	1	31	46	0.74
NRXT9020DD	90	140	20	1	32	49	1.27
NRXT10020DD	100	150	20	1	33	52.5	1.37
NRXT11020DD	110	160	20	1	35	59	1.49
NRXT12020DD	120	170	20	1.1	36	62	1.6
NRXT12025DD	120	180	25	1.1	70	110	2.47
NRXT13025DD	130	190	25	1.1	72.5	118	2.63
NRXT14025DD	140	200	25	1.1	75	125	2.8
NRXT15025DD	150	210	25	1.1	77	133	2.96
NRXT15030DD	150	230	30	1.1	119	192	5.55
NRXT20025DD	200	260	25	1.5	88	172	3.75
NRXT20030DD	200	280	30	1.5	136	247	6.3
NRXT25025DD	250	310	25	2	98	211	4.55
NRXT25030DD	250	330	30	2	150	300	7.65
NRXT30025DD	300	360	25	2.1	107	250	5.3
NRXT30035DD	300	395	35	2.1	194	405	12.6
NRXT30040DD	300	405	40	2.1	199	425	16.5
NRXT40035DD	400	480	35	2.1	188	465	13.4
NRXT40040DD	400	510	40	2.1	226	545	22.5
NRXT50040DD	500	600	40	2.1	239	625	24.4
NRXT50050DD	500	625	50	3	325	810	39.5
NRXT60040DD	600	700	40	3	261	745	28.9

Product Description

NRXT2508 N series crossed roller bearings for the rotating joints of robots

N series Crossed Roller Bearings are thin-wall bearings consisting of an inner ring, a two-part outer ring, cylindrical rollers, and separators. The rollers are oriented at right angles to each other and kept apart by separators.

This kind of N series Crossed Roller Bearings can sustain axial loads in both directions as well as radial loads and strong moment loads. And with their internal clearances factory-adjusted, it can be installed directly without troublesome shim adjustment. Mounting is facilitated by the outer ring parts being inseparable

Our Services

1.Your inquiry to our product & price will be replied within 24 hours.

2.OEM & ODM projects are highly welcomed. We have strong R&D team here to help.

3.Your business relationship with us will be confidential to any third party.

Feature of Crossed Roller Bearing

1. High accuracy and load capacity. Precision ground V grooved ways and rollers.

2. Withstands force in any direction. Alternately crossed rollers 45º angle.

3. Easy Installation and get used to small spaces. Threaded mounting holes in standard pattern.

4. Factory preloaded for minimum axial play and low coefficient of friction.

Installation & Cautions

1.Inspect the parts before installing:Clean bearing bracket,main axle or other parts to remove dirt or grease.

2.Place the bearing into the bearing bracket and main axle:To match the design clearance ,keep the bearing horizontal and insert the bearing into the bearing bracket or axle.If it is hard to install,use a rubber hammer to slightly hit every part of the bearing,so that the bearing can be attention to the hitting force is too large.Afterwards,the matching status of bearing and basic face can be examined by checking the noise.For a interference fit,use heating or cooling to expand or shrink the parts for ease of installation. Be sure the bearing temperature does not exceed 80℃ . If the split inner or outer ring is acentric, please loosen the blots slightly and rotate the monolithic ring to adjust the concentricity of split ring, so that the bearing can be fit in the bracket.

3.Install the mounting disc:Place the mounting disc onto the bearing and align the screw holes, Screw all the bolts in the holes first and follow the orders show in below diagram when tightening bolts in diagonally opposite sequence,Do not tighten bolts randomly.

Cautions:

1.The normal operating temperature of Crossed roller bearing is 10-80℃, If it is over this range,please contact LDB.

2.If a foreign substance enters inside the bearing structure, the rotation route of the roller may be damage, or the bearing may fail.Please clean the bearing by refill the lubricant grease.

3.Please do not remove or apply force to the bolt and nut of the split bearing

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