0445 / GWL_e_complete
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Rothe Erde Large Diameter
Antifriction Bearings.
Technologies |
Rothe Erde |
A ThyssenKrupp |
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company |
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TK
With large-diameter antifriction bearings and quality rings to global success.
Rothe Erde is the worldwide leading manufacturer of largediameter antifriction bearings (including ball and roller bearing slewing rings) and of seam- less-rolled steel and non-fer- rous metal rings. In addition Rothe Erde is a well known manufacturer of turntables.
Rothe Erde large-diameter antifriction bearingsare for decades state of the art technology and practice-proven all over the world, in a wide variety of applications.
Rothe Erde manufactures large-diameter bearings
from 200 mm up to 8,000 mm diameter as monobloc systems and segmental bearings in larger dimensions.
Rothe Erde large-diameter antifriction bearings are
manufactured in Germany and |
Examples for applications: |
• Packaging and Filling |
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by Rothe Erde subsidiaries in |
• Antennas and Radar |
Machines |
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Great Britain, Italy, Spain, the |
• Equipment |
• Rail Vehicles |
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United States, Brazil, Japan |
• Areal Hydraulic Platforms |
• Ship Deck Cranes |
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and China. The market pres- |
• Aviation and Aerospace Units |
• Stackers and Reclaimers |
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ence of Rothe Erde in all major |
• Bogie Bearings for Vehicles |
• Steelmill Equipment |
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industrialised countries is |
• Communication Systems |
• Telescopes |
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maintained by own distributors |
• Excavators |
• Tower Cranes |
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or sales agencies. |
• Harbour and Shipyard Cranes |
• Tunnelling Machines |
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• Machine Tools |
• Water Treatment Equipment |
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Total commitment to quality is |
• Mechanical Engineering |
• Wind and Solar Energy Plants |
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common to Both, our domestic |
• Mobile Cranes |
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and foreign production facili- |
• Offshore Technology |
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ties.All service and areas from |
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applications consulting to |
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design and manufacturing, |
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including comprehensive |
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customer service, are based on |
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the international EN ISO 9001 |
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quality standard series. |
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Plant Dortmund
Plant Lippstadt
®
Index.
Rothe Erde Large-Diameter
Antifriction Bearings
Bearing design types |
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Basic information |
Pages |
6 |
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41 |
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Standard series KD 210 |
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Single-row ball bearing slewing rings |
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Profile bearings |
Pages |
43 |
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55 |
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Standard series KD 320 |
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Double-row ball bearing slewing rings |
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Double axial ball bearings |
Pages |
57 |
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83 |
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Standard series KD 600 |
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Single-row ball bearing slewing rings |
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Four-point contact bearings |
Pages |
85 |
– 121 |
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Standard series RD 700 |
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Double-row slewing rings |
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Roller/ball combination bearings |
Pages |
123 |
– 133 |
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Standard series RD 800 |
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Single-row roller bearing slewing rings |
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Cross-roller bearings |
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135 |
– 153 |
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Standard series RD 900 |
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Three-row roller bearing slewing rings |
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Axial-roller bearings |
Pages |
155 |
– 167 |
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3
®
Rothe Erde Large-Diameter
Antifriction Bearings
Rothe Erde GmbH D-44137 Dortmund © 2002
All rights reserved.
4
®
Rothe Erde Large-Diameter
Antifriction Bearings
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Bearing design types |
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Basic information |
Seiten 4 – 41 |
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Bearing design types |
6 – 7 |
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Load transmission |
8 |
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Bearing selection |
9 –10 |
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Load factors for bearing selection |
11 |
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Example of a bearing selection |
12 – 14 |
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Service life |
15 |
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Example of a service life |
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calculation |
16 – 17 |
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Fastening bolts |
18 – 23 |
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Boltmike SM II + Data storage |
24 |
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Loctite-586/Loctite-275 |
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improvement in the frictional bond |
25 |
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Gearing |
26 |
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Pinion tip relief |
27 |
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Turning torque calculation |
28 |
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Raceway hardening |
29 |
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Quality assurance |
30 |
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Finite Elemente Method (FEM) |
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Dimensioning of |
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companion structures |
31 |
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Companion structures |
32 |
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Measurement and machine handling |
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of the area surface, |
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admissible plan deviations and |
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bending of the mounting structure |
33 – 34 |
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Operating conditions |
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and special requirements |
35 |
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Wear measurement |
36 – 37 |
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Installation, lubrification, maintenance |
38 – 40 |
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Drawing number composition |
41 |
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5
®
Bearing design types.
Rothe Erde Large-Diameter
Antifriction Bearings
Standard series KD 210 |
Standard series KD 320 |
Standard series KD 600 |
Single-row ball bearing slewing rings Profile bearings
Double-row ball bearing slewing rings Double-axial ball bearings
Single-row ball bearing slewing rings Four-point contact bearings
KD 210 standard bearing types 21 and 110 |
KD 320 standard bearings are available |
KD 600 standard bearings are available |
are available |
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● without gear |
● without gear |
● without gear |
● with external gear |
● with external gear |
● with external gear |
● with internal gear |
● with internal gear |
● with internal gear |
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● drawing position = mounting position |
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Type 13 is supplied |
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● without gear |
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Applications: |
Applications: |
e.g. vehicle construction, |
e.g. mechanical handling, mining and materials |
general mechanical engineering. |
handling. |
For bearings with similar dimensions as |
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type 21, but with higher load capacities: |
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see standard series KD 600, Pages 90 and 91. |
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Applications:
e.g. hoisting and mechanical handling, general mechanical engineering.
6
®
Bearing design types.
Rothe Erde Large-Diameter
Antifriction Bearings
Standard series RD 700 |
Standard series RD 800 |
Standard series RD 900 |
Double-row slewing rings |
Single-row roller bearing slewing rings |
Roller/ball combination bearings |
Cross-roller bearings |
Three-row roller bearing slewing rings Axial-roller bearings
RD 700 standard bearings are available |
RD 800 standard bearings are available |
RD 900 standard bearings are available |
● without gear |
● without gear |
● without gear |
● with external gear |
● with external gear |
● with external gear |
● with internal gear |
● with internal gear |
● with internal gear |
● drawing position = mounting position |
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● drawing position = mounting position |
Applications: |
Applications: |
Applications: |
e.g. mining and materials handling. |
e.g. hoisting and mechanical handling, general |
e.g. hoisting, mechanical handling, mining |
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mechanical engineering. |
and materials-handling, offshore technology, |
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general mechanical engineering. |
7
Load transmission.
Rothe Erde large-diameter antifriction bearings are ready for installation, transmitting axial and radial forces simultaneously as well as the resulting tilting moments.
Fig. 1:
Large antifriction bearings are generally installed supported on the lower companion structure.
Fig. 1
Fig. 2:
Suspended installations require an increased number of fastening bolts. The bolt curves shown in the diagrams do not apply in such a case. Calculation to be carried out by RE.
Fig. 2
®
Rothe Erde Large-Diameter
Antifriction Bearings
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