FUN 20 Metric series

A pair of flange profile rings separated by a 20 mm ball set; a constant section height of 56 mm and a standard range of external diameters ranging from 418 mm to 1198 mm


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.

Applications

While a flange reduces the overall weight of the bearing, it also reduces its torsional rigidity and these bearings are thus best suited to light or medium duty applications where there is not a high load eccentricity.

  • 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

If the METRIC sizes and bolt patterns are not quite right, consider the FUN20 Imperial Series

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.


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QCB reference Outline dimensions & weight
Da B U C D Di

Load

curve

Weight
mm mm mm mm mm mm kg
FUN 418 20 00 CC LM 418 353 315.5 312.5 275 204 1 19
FUN 505 20 00 CC LM 518 453 415.5 412.5 375 304 2 23.5
FUN 650 20 00 CC LM 648 583 545.5 542.5 505 434 3 31
FUN 750 20 00 CC LM 748 683 645.5 642.5 605 534 4 36.5
FUN 850 20 00 CC LM 848 783 745.5 742.5 705 634 5 43
FUN 950 20 00 CC LM 948 883 845.5 842.5 805 734 6 48
FUN 1050 20 00 AA LM 1048 983 945.5 942.5 905 834 7 53
FUN 1200 20 00 AA LM 1198 1133 1095.5 1092.5 1055 984 8 62
QCB reference Outer holes Inner holes
La na Li ni
mm mm
FUN 418 20 00 CC LM 390 8 232 12
FUN 505 20 00 CC LM 490 8 332 12
FUN 650 20 00 CC LM 620 10 462 14
FUN 750 20 00 CC LM 720 12 562 16
FUN 850 20 00 CC LM 820 12 662 16
FUN 950 20 00 CC LM 920 14 762 18
FUN 1050 20 00 AA LM 1020 16 862 20
FUN 1200 20 00 AA LM 1170 16 1012 20


Interchange information

The FUN20 Metric 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.


Basic QCB Ref Torriani Rollix Roth Erde INA
FUN 418 20 00
FUN 505 20 00 SD 505 20 00 C 23.0411.01.ZZ.00 230.20.0400.013 21/520.0 VLU 20 0414 N
FUN 650 20 00 SD 650 20 00 C 23.0541.01.ZZ.00 230.20.0500.013 21/650.0 VLU 20 0544 N
FUN 750 20 00 SD 750 20 00 C 23.0641.01.ZZ.00 230.20.0600.013 21/750.0 VLU 20 0644 N
FUN 850 20 00 SD 850 20 00 C 23.0741.01.ZZ.00 230.20.0700.013 21/850.0 VLU 20 0744 N
FUN 950 20 00 SD 950 20 00 C 23.0841.01.ZZ.00 230.20.0800.013 21/950.0 VLU 20 0844 N
FUN 1050 20 00 SD 1050 20 00 C 23.0941.01.ZZ.00 230.20.0900.013 21/1050.0 VLU 20 0944 N
FUN 1200 20 00 SD 1200 20 00 C 23.1091.01.ZZ.00 230.20.1000.013 21/1200.0 VLU 20 1094 N
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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

Materials

From 2015 all FUN20 Metric Series slewing rings >1000mm outer diameter manufactured in 42CrMo4 steel. Smaller units are usually produced in 50Mn / C45.


Internal construction

Standard FUN20 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.


Seals

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


Gearing

The FUN20 Metric series is ungeared


Lubrication

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. FUN20 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!


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QCB referencePDF PrintCAD.dwgMODEL.STP
FUN 418 20 00 CC LMFUN 418 20.pdfFUN 418 20.dwgFUN 418 20.STP
FUN 505 20 00 CC LMFUN 505 20.pdfFUN 505 20.dwgFUN 505 20.STP

FUN 650 20 00 CC LM

FUN 650 20.pdfFUN 650 20.dwgFUN 650 20.STP
FUN 750 20 00 CC LMFUN 750 20.pdfFUN 750 20.dwgFUN 750 20.STP
FUN 850 20 00 CC LMFUN 850 20.pdfFUN 850 20.dwgFUN 850 20.STP
FUN 950 20 00 CC LMFUN 950 20.pdfFUN 950 20.dwgFUN 950 20.STP
FUN 1050 20 00 AA LMFUN 1050 20.pdfFUN 1050 20.dwgFUN 1050 20.STP
FUN 1200 20 00 AA LMFUN 1200 20.pdfFUN 1200 20.dwgFUN 1200 20.STP
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Associated Products


LUBRICANTS

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

Lubricants

GreaseMax Auto Lubricators

TRAILER RINGS

Economical semi-precision turntables of similar diameter.

Trailer rings

Do you have a special project?

Need some advice? We can help!


oemsales@nbcgroup.co.uk

01952 222300