SUN 20 Metric Series

Two solid section rings separated by a 20mm ball set, a constant height of 56mm, and a standard range of external diameters ranging from 386mm to 1166mm.

All QCB® slewing rings are manufactured to the highest possible quality levels in ISO certified factories. A QCB® Quality Standard defines all aspects of their dimensions and tolerances as well as all aspects of manufacturing from materials properties, all stages of production, as well as packing and labelling.

Whilst the data on the site is updated regularly, we reserve the right to implement subtle changes to these standards in our quest for continual product improvement.


  • Industrial positioners (e.g. welding assemblies and jigs)
  • Ship or truck loading chutes and swivels
  • Stretch wrapping machines
  • Conveyors and other materials handling equipment
  • Simple amusement rides

Need help?

Our technical team have many years of experience and are happy to assist with selection. Call or e-mail them for fast, efficient and professional advice.

The Design Form will assist you in defining your application details.

QCB referenceOutline dimensions & weight
DaDiUCda f9di H9



SUN 386 20 01 CC LM386242315313384244121
SUN 486 20 01 CC LM486342415412484344229
SUN 616 20 01 CC LM616472545542614474337
SUN 716 20 01 CC LM716572645642714574444
SUN 816 20 01 CC LM816672745742814674552
SUN 916 20 01 CC LM916772845842914774660
SUN 1016 20 01 AA LM10168729459421014874767
SUN 1166 20 01 AA LM116610221095109211641024877
QCB referenceOuter holesInner holes
mm mm
SUN 386 20 01 CC LM3602026820
SUN 486 20 01 CC LM4602436824
SUN 616 20 01 CC LM5903249832
SUN 716 20 01 CC LM6903659836
SUN 816 20 01 CC LM7904069840
SUN 916 20 01 CC LM8904079840
SUN 1016 20 01 AA LM9904489844
SUN 1166 20 01 AA LM114048104848
Standard grease fitting# at least 2x M8 on inner and outer rings

Interchange information

The SUN20 Series is interchangeable with bearings from other manufacturers such as Roth Erde, Torriani Gianni, INA, Schaeffler, SKF, RKS, RIMA, La Leonessa and many more. However there may be variations to this rule (e.g. OEM variants) and we invite you to refer to our technical staff for assistance.

SUN 486 20 00 CCSD 486 20 00 CC31.0411.01.ZZ.00060.20.0414.500.01.1503VSU 20 0414 173.20.0414.00.00.10
SUN 616 20 00 CCSD 616 20 00 CC31.0541.01.ZZ.00060.20.0544.500.01.1503VSU 20 0544 173.20.0544.00.00.10
SUN 716 20 00 CCSD 716 20 00 CC31.0641.01.ZZ.00060.20.0644.500.01.1503VSU 20 0644173.20.0644.00.00.10
SUN 816 20 00 CCSD 816 20 00 CC31.0741.01.ZZ.00060.20.0744.500.01.1503VSU 20 0744173.20.0744.00.00.10
SUN 916 20 00 CCSD 916 20 00 CC31.0841.01.ZZ.00060.20.0844.500.01.1503VSU 20 0844173.20.0844.00.00.10
SUN 1016 20 00 CCSD 1016 20 00 CC31.0941.01.ZZ.00060.20.0944.500.01.1503VSU 20 0944173.20.0944.00.00.10
SUN 1166 20 00 CCSD 1166 20 00 CC31.1091.01.ZZ.00060.20.1094.500.01.1503VSU 20 1094173.20.1094.00.00.10


Custom designs

  • Double drilled or custom drilling patterns
  • Higher precision bearings with location diameters
  • Reduced internal clearance (Class 5 & Class 6)
  • Black oxide or zinc plating for enhanced corrosion protection
  • Epoxy paint or even Nylon coated units to special order
  • Stainless steel or aluminium versions


From 2015 all SUN20 Metric Series slewing rings >1000mm outer diameter will be manufactured in 42CrMo4 steel. Smaller units are usually produced in 50Mn / C45.

Internal construction

Standard SUN20 Series bearings incorporate plastic spacers, but ball spacers, steel or brass spacers, or even full complement and caged designs can be supplied for specific applications.


A land riding NBR (nitrile rubber) seal strip is standard. VITON seals can be supplied to order.


The SUN20 Metric series is ungeared


QCB® Slewing rings are assembled with a small quantity of Lithium EP2 grease. It is important that all slewing rings are greased during installation and prior to operation. SUN20 Metric Series slewing rings will usually have 4 or 6 grease nipples DIN 71412 M8x1 on the radial face of each ring. Sufficient grease nipples for all holes as well as Nylon plugs (to insert if a grease nipple is not required) are supplied with each ring.

Special greases can be supplied on demand as can GreaseMax Automatic Lubricators and Accessories.

Load & Bolt limit curves

If both a radial and an axial load act on the bearing these must be combines into a single equivalent load to enable basic selection from the load curves. The raceway limit is illustrated by the blue line, the red line illustrates the limit for the specified number of Grade 10.9 bolts.The load point should be well under the relevant load curve for long life.

Grade 8.8 bolts can be used but only after approval by our technical team.

Similarly if the load is suspended or the axis of rotation is not vertical please refer the application details to us and take advantage of our decades of experience!

QCB referencePDF Print
SUN 486 20 00 CC LMSUN 486 20.pdf
SUN 616 20 00 CC LMSUN 616 20.pdf

SUN 716 20 00 CC LM

SUN 716 20.pdf
SUN 816 20 00 CC LMSUN 816 20.pdf
SUN 916 20 00 CC LMSUN 916 20.pdf
SUN 1016 20 00 CC LMSUN 1016 20.pdf
SUN 1166 20 00 AA LMSUN 1116 20.pdf

The 3D models for these bearings are available from 3DContentCentral - search for "QCB SUN"

Associated Products


Ensure an adequate supply of the correct grease to prolong slewring ring life


GreaseMax Auto Lubricators


Economical semi-precision turntables of similar diameter.

Trailer rings

Do you have a special project?

Need some advice? We can help!

01952 222300