NRXT(DD) SERIES CROSSED ROLLER BEARING
NRXT(DD) series of JCB crossed roller bearing is consisted of an outer ring and an inner ring with a group of cylindrical rollers and spacers (or cages). The rollers are arranged between the inner ring and the outer ring, and spacers are placed between the rollers to prevent them from colliding with each other.
Description
JCB crossed roller bearing (NSK series) have two types, including split outer ring type with separator (NRXT…DD),split outer ring type with separator (NRXT…E)…
_NRXT…DD series crossed roller bearing is split outer ring type with separator
_Outer Diameter of NRXT…DD series crossed roller bearing is from 41 mm to 700 mm
_Inner Diameter of NRXT…DD series crossed roller bearing is from 25 mm to 600 mm
_Accuracy class of NRXT…DD series crossed roller bearing: P6,P5, P4, P2
_Seal Symbol of NRXT…DD series crossed roller bearing: No symbol signifies the open type without seals.(DD signifies seals on both sides. E signifies no seal )
_Axial internal clearance of NRXT…DD series crossed roller bearing: Including C8,C1
Schematic diagram
Table1
Bearing No. | Boundary dim.(mm) | Basic loading rates(N) | Oil Hole(mm) | Abutment and Fillet Dimensions(mm) | Weight | ||||
d | D | B | rmin | C | Co | doh | ramax | kg | |
NRXT 2508DD | 25 | 41 | 8 | 0.6 | 4000 | 4400 | 1.5 | 0.6 | 0.05 |
NRXT 4010DD | 40 | 65 | 10 | 0.6 | 7700 | 9850 | 1.5 | 0.6 | 0.14 |
NRXT 5013DD | 50 | 80 | 13 | 0.6 | 16400 | 20900 | 2 | 0.6 | 0.26 |
NRXT 6013DD | 60 | 90 | 13 | 0.6 | 17900 | 24600 | 2 | 0.6 | 0.3 |
NRXT 7013DD | 70 | 100 | 13 | 0.6 | 19300 | 28400 | 2 | 0.6 | 0.34 |
NRXT 8013DD | 80 | 110 | 13 | 0.6 | 20500 | 32000 | 2 | 0.6 | 0.38 |
NRXT 8016DD | 80 | 120 | 16 | 0.6 | 29800 | 42500 | 2.5 | 0.6 | 0.67 |
NRXT 9016DD | 90 | 130 | 16 | 1 | 31000 | 46000 | 2.5 | 1 | 0.74 |
NRXT 9020DD | 90 | 140 | 20 | 1 | 32000 | 49000 | 2.5 | 1 | 1.27 |
NRXT 10020DD | 100 | 150 | 20 | 1 | 33000 | 52500 | 2.5 | 1 | 1.37 |
NRXT 11020DD | 110 | 160 | 20 | 1 | 35000 | 59000 | 2.5 | 1 | 1.49 |
NRXT 12020DD | 120 | 170 | 20 | 1.1 | 36000 | 62000 | 2.5 | 1 | 1.6 |
NRXT 12025DD | 120 | 180 | 25 | 1.1 | 70000 | 110000 | 2.5 | 1 | 2.47 |
NRXT 13025DD | 130 | 190 | 25 | 1.1 | 72500 | 118000 | 2.5 | 1 | 2.63 |
NRXT 14025DD | 140 | 200 | 25 | 1.1 | 75000 | 125000 | 2.5 | 1 | 2.8 |
NRXT 15025DD | 150 | 210 | 25 | 1.1 | 77000 | 133000 | 2.5 | 1 | 2.96 |
NRXT 15030DD | 150 | 230 | 30 | 1.1 | 119000 | 192000 | 3 | 1 | 5.55 |
Table 2
Bearing No. | Boundary dim.(mm) | Basic loading rates(N) | Oil Hole(mm) | Abutment and Fillet Dimensions(mm) | Weight | ||||
d | D | B | rmin | C | Co | doh | ramax | kg | |
NRXT 20025DD | 200 | 260 | 25 | 1.5 | 88000 | 172000 | 2.5 | 1.5 | 3.75 |
NRXT 20030DD | 200 | 280 | 30 | 1.5 | 136000 | 247000 | 3 | 1.5 | 6.3 |
NRXT 25025DD | 250 | 310 | 25 | 2 | 98000 | 211000 | 2.5 | 2 | 4.55 |
NRXT 25030DD | 250 | 330 | 30 | 2 | 150000 | 300000 | 3 | 2 | 7.65 |
NRXT 30025DD | 300 | 360 | 25 | 2.1 | 107000 | 250000 | 2.5 | 2 | 5.3 |
NRXT 30035DD | 300 | 395 | 35 | 2.1 | 194000 | 405000 | 3 | 2 | 12.6 |
NRXT 30040DD | 300 | 405 | 40 | 2.1 | 199000 | 425000 | 4 | 2 | 16.5 |
NRXT 40035DD | 400 | 480 | 35 | 2.1 | 188000 | 465000 | 3 | 2 | 13.4 |
NRXT 40040DD | 400 | 510 | 40 | 2.1 | 226000 | 545000 | 4 | 2 | 22.5 |
NRXT 50040DD | 500 | 600 | 40 | 2.1 | 239000 | 625000 | 4 | 2 | 24.4 |
NRXT 50050DD | 500 | 625 | 50 | 3 | 325000 | 810000 | 5 | 2.5 | 39.5 |
NRXT 60040DD | 600 | 700 | 40 | 3 | 261000 | 745000 | 4 | 2.5 | 28.9 |
How to ensure quality of crossed roller bearing
–Advanced design
From the beginning of design stage, we make a modeling to design crossed roller bearing by advanced design software, then use method of finite element analysis to verify the results.
–Advanced equipment
Base on advanced equipment to ensure product quality, we possess advance processing equipment for key production process, for example, CNC machining center, CNC heat treatment equipment …etc.
–Reliable raw materials
The most important part of ensuring the product quality is raw materials manufacturing, therefore we choose the reliable raw materials to use for element of crossed roller bearing, such as bearing ring and roller etc, we also could provide customize crossed roller bearing with special material.
–Perfect management system
We established perfect management system so to ensure product quality, we passed to certificate ISO9001 quality management system as well as obtain ISO9001 certification, and carry out quality manufacture system strictly for whole process of production from beginning to the end.
–Perfect testing method
We organized a professional and strong testing and inspecting team with advanced test equipment by perfect testing method to guarantee product quality and set up special testing machine and test bed for crossed roller bearing.
If you need formal drawing , please contact with us
Contact information
Luoyang JCB Bearing Technology Co., Ltd
Address : No. 285, Fenghua road, Luoyang, Henan, China. Postal code : 471003
Phone : 86-379-68611678 Fax : 86-379-68611679
WhatsApp: 0086-186-0379-5853
E-mail: sales@jcb-bearing.com
Reserved E-mail:jcb-bearing@hotmail.com
Website: www.jcb-bearing.com
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