Part Number |
NRT 850 A |
System of Measurement |
Metric |
Roller Bearing Type |
Cylindrical |
For Load Direction |
Combined |
Bore Dia |
850 mm |
Bore Dia Tolerance |
-0.05mm to 0 |
Outer Dia |
1095 mm |
Outer Dia Tolerance |
-0.055mm to 0 |
Width |
124 mm |
Height Tolerance |
-0.85mm to 0 |
Shoulder Diameter Inner Ring - Large Shoulder |
1018 mm |
Outer Ring (Housing Washer) Width |
37 mm |
Distance |
80.5 mm |
Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter |
890 mm |
Outer Ring (Housing Washer) Hole Pitch Circle Diameter |
1055 mm |
Inner Ring (Shaft/Locating Washer) Through Hole |
18 mm |
Inner Ring (Shaft Washer) Sinkhole |
26 mm |
Outer Ring (Housing Washer) Through Hole |
18 mm |
Inner Ring (Shaft Washer) Sinkhole Depth |
17 mm |
Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) |
1.5 mm |
Chamfer Dimension r2 (min.) |
1.5 mm |
Basic Dynamic Load Rating - Radial Direction |
473 kN |
Basic Static Load Rating - Radial Direction |
2120 kN |
Basic Dynamic Load Rating - Axial Direction |
415 kN |
Attainable Speed For Grease Lubrication |
40 r/min |
Attainable Speed For Oil-Air Lubrication |
80 r/min |
Axial Preload |
47 kN |
Axial Unloading Force |
103 kN |
Frictional Moment |
300 N·m |
Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) |
77000000 kN/µm |
Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) |
22400000 kN/µm |
Moment Stiffness |
7011 kN·m/mrad |
Ring Material |
Chrome Steel |
Roller Material |
Chrome Steel |
Cage Material |
Brass |
Lubrication |
Grease, Oil |
Temperature Range |
-30° to 110 °C |
RoHS |
Compliant |
REACH |
Compliant |
Weight |
253 kg |