FEG 20 Metric Series
A flange profile inner and geared outer ring separated by a 20 mm ball set; a constant section height of 56 mm and a standard range of external diameters ranging from 404 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.
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 FEG20 Imperial Series
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 reference||Outline dimensions & weight|
|FEG 404 20 00 AA LM||404||315.5||312.5||275||204||1||23|
|FEG 505 20 00 AA LM||504||415.5||412.5||375||304||2||29|
|FEG 650 20 00 AA LM||640||545.5||542.5||505||434||3||40|
|FEG 750 20 00 AA LM||742||645.5||642.5||605||534||4||47|
|FEG 850 20 00 AA LM||838||745.5||742.5||705||634||5||53|
|FEG 950 20 00 AA LM||950||845.5||842.5||805||734||6||64|
|FEG 1050 20 00 AA LM||1046||945.5||942.5||905||834||7||69|
|FEG 1200 20 00 AA LM||1198||1095.5||1092.5||1055||984||8||82|
|QCB reference||Outer holes||Inner holes||20o spur gear|
|FEG 404 20 00 AA LM||355||10||232||12||395||5||79||33|
|FEG 505 20 00 AA LM||455||10||332||12||495||5||99||33|
|FEG 650 20 00 AA LM||585||14||462||14||630||6||105||39|
|FEG 750 20 00 AA LM||685||16||562||16||732||6||122||39|
|FEG 850 20 00 AA LM||785||18||662||16||828||6||138||39|
|FEG 950 20 00 AA LM||885||18||762||18||936||8||117||52|
|FEG 1050 20 00 AA LM||985||20||862||20||1032||8||129||52|
|FEG 1200 20 00 AA LM||1135||22||1012||20||1184||8||148||52|
The FEG20 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|
|FEG 404 20 00|
|FEG 505 20 00||E 505 20 00 C||21 0411 01 ZZ 00||231 20 0400 013||21/520 1||VLA 20 0414 N|
|FEG 650 20 00||E 650 20 00 C||21 0541 01 ZZ 00||231 20 0500 013||21/650 1||VLA 20 0544 N|
|FEG 750 20 00||E 750 20 00 C||21 0641 01 ZZ 00||231 20 0600 013||21/750 1||VLA 20 0644 N|
|FEG 850 20 00||E 850 20 00 C||21 0741 01 ZZ 00||231 20 0700 013||21/850 1||VLA 20 0744 N|
|FEG 950 20 00||E 950 20 00 C||21 0841 01 ZZ 00||231 20 0800 013||21/950 1||VLA 20 0844 N|
|FEG 1050 20 00||E 1050 20 00 C||21 0941 01 ZZ 00||231 20 0900 013||21/1050 1||VLA 20 0944 N|
|FEG 1200 20 00||E 1200 20 00 C||21 1091 01 ZZ 00||231 20 1000 013||21/1200 1||VLA 20 1094 N|
- 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
All geared slewing rings are manufactured in 42CrMo4 V steel to offer superior gear strength over some other brands.
Standard FEG20 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 FEG20 Metric series has a standard 20° pressure angle, uncorrected spur gear cut into the outer ring.
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 the inner ring 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 Reference||PDF Print|
|FEG 404 20 00 AA LM||FEG 404 20.pdf|
|FEG 505 20 00 AA LM||FEG 505 20.pdf|
|FEG 650 20 00 AA LM||FEG 650 20.pdf|
|FEG 750 20 00 AA LM||FEG 750 20.pdf|
|FEG 850 20 00 AA LM||FEG 850 20.pdf|
|FEG 950 20 00 AA LM||FEG 950 20.pdf|
|FEG 1050 20 00 AA LM||FEG 1050 20.pdf|
|FEG 1200 20 00 AA LM||FEG 1200 20.pdf|
The 3D models for these bearings are available from 3DContentCentral - search for "QCB FEG"
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Ensure an adequate supply of the correct grease to prolong slewring ring life
Economical semi-precision turntables of similar diameter.
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