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XR/JXR交叉圓錐滾子軸承，圓錐滾子90交叉排布，線接觸承載，有效支撐跨距遠(yuǎn)大于截面寬度，可承受超大徑向、軸向及傾覆力矩，剛性強(qiáng)，極限轉(zhuǎn)速優(yōu)于普通圓柱交叉滾子軸承，精度可達(dá)P4/P5級。帶尼龍隔離塊，運轉(zhuǎn)扭矩小，支持開式、UU密封。國產(chǎn)XR/JXR現(xiàn)貨，適配數(shù)控立車、鏜銑床、磨床重型轉(zhuǎn)臺，也用于雷達(dá)、大型分度工作臺。
| 公稱型號 Bearing Type | 內(nèi)徑d Inner Diameter | 外徑D Outer Diameter | 高度H Width | 倒角R Chamfer | 徑向額定載荷 Basic load rating(Radial) kN | 軸向額定載荷 Basic load rating(Axial) kN | 極限轉(zhuǎn)速 Limited Speed r/min | 重量 Weight kg |
|---|---|---|---|---|---|---|---|---|
| JXR637050 | 300 | 400 | 37 | 1.5 | 63 | 80.1 | 720 | 13 |
| JXR652050 | 310 | 425 | 45 | 2.5 | 82.2 | 102 | 640 | 20 |
| JXR699050 | 370 | 495 | 50 | 3.0 | 93.6 | 119 | 600 | 30 |
| XR496051 | 203.2 | 279.4 | 31.75 | 1.5 | 51.3 | 61.6 | 800 | 6.5 |
| XR678052 | 330.2 | 457.2 | 63.5 | 3.3 | 100 | 123 | 620 | 35 |
| XR766051 | 457.2 | 609.6 | 63.5 | 3.3 | 141 | 178 | 520 | 51 |
| XR820060 | 580 | 760 | 80 | 6.4 | 215 | 234 | 300 | 100 |
| XR855053 | 685.8 | 914.4 | 79.375 | 3.3 | 270 | 344 | 260 | 150 |
| XR882055 | 901.7 | 1117.6 | 82.55 | 3.3 | 300 | 396 | 200 | 185 |
| XR889058 | 1028.7 | 1327.15 | 114.3 | 3.3 | 405 | 534 | 160 | 400 |
| XR897051 | 1549.4 | 1828.8 | 101.6 | 3.3 | 518 | 699 | 80 | 500 |
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