custom high performance Large Diameter Tower Crane Slewing Bearing
Cross tapered roller bearings adopt large cone Angle and cone
geometry design to make the overall effective span of bearings
larger, but also can save space, save material costs. Therefore, it
has higher anti-overturning torque capacity, higher rotation
accuracy and limit speed. It is the ideal choice for high speed
vertical turning, vertical boring machine, vertical grinding
machine and other machine tool turntable shaft.
Series | Model | Main dimensions (mm) | Basic | Limiting | Weight | Exchange model |
Number | dynamic | speed | (Kg) |
| load rating | (Oil) | |
| Inner | Outer | Width | Chamfer | Radial | Axial | r/m | | SKF | NACHI | URB | PSL |
| ring | ring | B(mm) | r(min) | Cr(KN) | Ca(KN) | | |
| d (mm) | D(mm) | | | | | | |
XR/ | XR496051 | 203.2 | 279.4 | 31.75 | 1.5 | 41 | 49.2 | 800 | 6.5 | 616093A | / | / | / |
JXR | XR678052 | 330.2 | 457.2 | 63.5 | 3 | 80 | 98.4 | 620 | 35 | 615661A | 300XRN50 | / | PSL 912-309A |
| XR766051 | 457.2 | 609.6 | 63.5 | 3 | 106 | 133 | 520 | 51 | 615894A | 0457XRN060 | XD.10.0457P5 | PSL 912-308A |
| XR820060 | 580 | 760 | 80 | 5 | 106 | 209 | 300 | 100 | 615662A | 580XRN76 | XD.10.0580P5 | PSL 912-304A |
| XR855053 | 685.8 | 914.4 | 79.375 | 3 | 180 | 224 | 260 | 150 | 615659A | 0685XRN091 | XD.10.0686P5 | PSL 912-305A |
| XR882055 | 901.7 | 1117.6 | 82.55 | 3 | 225 | 297 | 200 | 185 | 615895A | 0901XRN112 | XD.10.0902P5 | PSL 912-306A |
| XR889058 | 1028.7 | 1327.15 | 114.3 | 3 | 283 | 374 | 160 | 400 | BFKB353282 | 1028XRN132 | XD.10.1029P5 | PSL 912-307A |
| /HA4 |
| XR897051 | 1549.4 | 1828.8 | 101.6 | 3 | 326 | 489 | 80 | 500 | 615898A | / | XD.10.1549P5 | / |
| JXR637050 | 300 | 400 | 37 | 1.5 | 47.2 | 60 | 720 | 13 | / | / | / | / |
| JXR652050 | 310 | 425 | 45 | 2.5 | 61.6 | 76.5 | 640 | 20 | / | / | / | / |
| JXR699050 | 370 | 495 | 50 | 3 | 70.2 | 89.2 | 600 | 30 | / | / | / | / |