YRTC850 850*1095*124mm Yrt Rotary Table Bearings
The YRTC850 bearing is a YRT Bearing with an inner diameter of 850 mm , an outer diameter of 1095 mm, a width of 124 mm. It typically uses P6 P0 P4 P5 grade precision tolerances and features a GCr15 cage, GCr15 balls, GCr15 rings. It primarily bears Axial, Its dynamic radial rated load is approximately 105000, its static radial rated load is approximately 455000. It uses C0 standard radial clearance, no seals type, GCr15. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Feature: balls
Application: Rotary Table，machine tool
YRTC850 850*1095*124mm yrt rotary table bearings
| Designation | Dimensions (mm) | Fixing holes | Threaded extraction hole | Screw tightening torque MA Nm |
||||||||||||||
| d | D | H | H1 | H2 | C | D1 max. |
J | J1 | Inner ring | Outer ring | G | Qty | ||||||
| d1 | d2 | a | Qty | d3 | Qty | |||||||||||||
| YRTC850 | 850 | 1,095 | 124 | 80.5 | 43.5 | 37 | 1,018 | 890 | 1,055 | 18 | 26 | 17 | 58 | 18 | 54 | M16 | 6 | 284 |
| Designation | Pitch t | Basic load ratings | Rigidity | Mass m =kg |
||||||||
| Quantity X t | axial | radial | bearing position | rolling element set | ||||||||
| Including retaining screws and extraction threads | dyn. Ca N |
stat.C0a N |
dyn. Cr N |
stat. C0r N |
axial CaL kN/µm |
radial CrLkN/µm | Tilting rigidity CkLkNm/mrad |
axial CaL kN/µm |
radial CrL kN/µm |
Tilting rigidity CkLkNm/mrad |
||
| YRTC850 | 60 x 6° | 900,000 | 8,500,000 | 460,000 | 1,690,000 | 26.5 | 11.9 | 2,351 | 61.9 | 12 | 6,772 | 253 |
Axial/radial bearings
Axial/radial bearings are double direction axial bearings for screw mounting, with a radial guidance bearing. These ready-to-fit,greased units are very rigid, have high load carrying capacity and run with particularly high accuracy. They can support radial forces, axial forces from both directions and tilting moments free from clearance. The bearings are available in several series. For applications with low speeds and small operating durations, such as indexing tables and swivel type milling heads, the most suitable bearings are generally series YRT and YRTC.
For the bearing arrangements of direct drive axes, there is the series YRTS. Due to their high limiting speeds and very low, uniform frictional torque across the whole speed range, these bearings are particularly suitable for combination with torque motors. For higher accuracy requirements, these bearings are also available with restricted axial and radial runout accuracy.
Axial angular contact ball bearings
Axial angular contact ball bearings ZKLDF are low-friction, ready-to-fit, pregreased bearing units with high accuracy for very high speeds, high axial and radial loads and high demands on
tilting rigidity.Axial angular contact ball bearings are particularly suitablefor precision applications involving combined loads. Their preferred areas of use are bearing arrangements in rotary tables with a main
spindle function, for example in combined milling and turning, as well as in milling, grinding and honing heads and in measurement and testing equipment.
Axial/radial bearings with angular measuring system
Axial/radial bearings with angular measuring system YRTM and YRTSM correspond in mechanical terms to series YRT and YRTS, but are additionally fitted with an angular measuring system. The measuring system can measure angles to an accuracy of a few angular seconds by non-contact, magneto-resistive means.
Further information on axial/radial bearings with absolute value angular measuring systems YRTMA and YRTSMA can be found in special publication SSD 30.
Features
Axial radial bearings YRT, YRTC and YRTS and axial angular contact ball bearings ZKLDF are ready-to-fit high precision bearings for high precision applications with combined loads. They can support radial loads, axial loads from both sides and tilting moments without clearance and are particularly suitable for bearing arrangements with high requirements for running accuracy.
Due to the fixing holes in the bearing rings, the units are very easy to fit.
The bearings are radially and axially preloaded after fitting.
The mounting dimensions of all series are identical.
Axial/radial bearings YRT in the size range of d = 580 mm to d = 1 030 mm have been replaced by YRTC.
Compared with the predecessor product YRT, these bearings have higher rigidity, a higher limiting speed and lower bearing friction.
With angular measuring system
Axial/radial bearings are also available with an absolute value angular measuring system or have systems with pitch-coded reference marks. The measuring systems can measure angles to an accuracy of a few angular seconds by non-contact means.
Areas of application For standard applications with low speeds and small operatingdurations, such as indexing tables and swivel type milling heads, the most suitable bearings are generally series YRT and YRTC.
For the bearing arrangements of direct drive axes, there is the series YRTS. Due to their high limiting speeds and very low, uniform frictional torque across the whole speed range, these bearings are
particularly suitable for combination with torque motors.
For higher accuracy requirements, these bearings are also available with restricted axial and radial runout accuracy.
Axial angular contact ball bearings ZKLDF are particularly suitable for high speed applications with long operating duration.
They are characterised by high tilting rigidity, low friction and low lubricant consumption.
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