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Crane slewing bearings - manufacture and installation
 

Alatas offers high quality slewing bearings at reasonable prices and with delivery times of 60 to 90 days.

Quality control is carried out by Alatas personnel from the forging to the packaging of the finished product according to Class procedures. Our bearings are made in China by an Alatas audited contractor.

Certificates are available for each production step, automated records are available for all heat-treatments, hardness tests, surface tests etc.

The bearings are made from 42CrMo4 V or 50CrMo4 V, the raceway hardening is 4mm to 6mm, depending on the bearing design.

Class-certification is available for all bearings, at additional cost. If the original calculations for the bearings are no longer available, we can have them recalculated by our own structural engineers.

Alatas have supplied more than 100 bearings in the past few years and have extensive and valuable experience in this field.

Alatas slewing bearings are checked at every stage of the manufacturing process providing complete quality control - beware of cheaper slewing bearings from manufacturers that do not offer such rigorous quality control.

 

Crane slewing bearings - manufacture and installation gallery:

   
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Slew ring clearance checking
Slew ring tolerance checks
Slew ring hardness checks
     
   
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Slew ring dimensions checks
Slew ring close up
Slew ring close up
     
   
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Slew ring surface checks
Slew ring dimensions checks
Slew ring checks
     
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Bearing inspections
Bearing inspections
Bearing inspections
     
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MPI of complete ring after hardening
MPI of complete ring after hardening
MPI of complete ring after hardening
     
   
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Slew ring surface checks
Slew ring bearing clearance measurement,
dial gauge on magnetic stand
Crane slew ring
   
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Crane slew ring installation - MHI crane
Hatlapa crane slew ring installation
MHI crane slew ring installation
     
   
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Liebherr crane slew ring installation
Liebherr crane slew ring installation
Hagglund crane slew ring installation
     
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Heat treatment time - temperature curve
DNV Chop on material
DNV certificate

 
 
 
 
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Alatas Offices & Service Stations
Alatas UK Ltd - Head Office
Arthur Drive, Hoo Farm Ind. Est. Kidderminster
WORCS DY11 7RA UK
Tel: +44 1562 747050
Fax: +44 1562 747053
Houston Office, 22015, South Frwy.
Manvel, Texas 77578 USA
Tel: +1 281 431 0707
Fax: +1 281 431 0799
C/O: Houston Office, 22015, South Frwy.
Manvel, Texas 77578 USA
Tel: +1 786 293 2103
Fax: +1 305 233 2006
Sachsenring 11, D-27711 Osterholz-Scharmbeck
Bremen, Germany
Tel: +49 4795 957 1460
Fax: +49 4795 957 4102
2203 Winning Centre, 29 Tai Yau Street, San Po Kong, Kowloon, Hong Kong
Tel: +852 2153 2153
Fax: +852 2153 2163
Jebel Ali Free Zone - South, P.O. Box 263 007
Dubai United Arab Emirates
Tel: +971 4 885 7954
Fax: +971 4 885 7229
C/O: Houston Office, 22015, South Frwy.
Manvel, Texas 77578 USA
Tel: +1 281 431 0707
Fax: +1 281 431 0799
1 Int'l Business Park #03-01E
The Synergy, Singapore 609917
Tel: +65 6861 2336
Fax: +65 6861 6261
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