Detailed description
BRS Single Row Four Point Contact Slewing Ring Features:
1. Compact structure & light weight
2. Able to take axial, radial load and tilting moment at the same time.
Application :
Rotary welding machinery, medium and small series crane and excavators etc.
| Four point contact bearings VLA200414-N | |||||||
| di | 304 mm | Tolerance: +0,5 | |||||
| Da | 503,3 mm | ||||||
| Di | 415,5 mm | Tolerance: +0,5 | |||||
| Di ZT | 417 mm | Valid for bearings with centring (suffix ZT) | |||||
| Centring lengths (T, t) (see dimension drawing) | |||||||
| Tolerance: +IT8 | |||||||
| d0 | 495 mm | ||||||
| da | 412,5 mm | Tolerance: -0,5 | |||||
| di ZT | 306 mm | Valid for bearings with centring (suffix ZT) | |||||
| Centring lengths (T, t) (see dimension drawing) | |||||||
| Tolerance: +IT8 | |||||||
| H | 56 mm | ||||||
| La | 455 mm | ||||||
| Li | 332 mm | ||||||
| m | 5 mm | Tooth modulus | |||||
| na | 10 | Number of fixing holes in outer ring | |||||
| ni | 12 | Number of fixing holes in inner ring | |||||
| z | 99 | Number of teeth | |||||
| m | 29,5 kg | Mass | |||||
| Fr per | 41300 N | Maximum permissible radial load against friction lock | |||||
| Fz norm | 15900 N | Maximum permissible tooth force (dedendum fatigue strength) | |||||
| Fz max | 23600 N | Max. permissible tooth force against tooth fracture in dedendum | |||||
| Ca | 169000 N | Basic dynamic load rating, axial | |||||
| C0a | 295000 N | Basic static load rating, axial | |||||
| Cr | 111000 N | Basic dynamic load rating, radial | |||||
| C0r | 110000 N | Basic static load rating, radial | |||||
| 4 taper type lubrication nipples, DIN 71412-A S8x1, spaced uniformly on circumference | |||||||
| Bearings are also available without holes in the bearing rings. | |||||||








