SIG 25 Metric Series

Two solid section rings separated by a 25mm ball set, with the inner ring being geared. This series has a constant height of 63mm, and a standard range of external diameters ranging from 855mm to 1555mm.

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

  • 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.


#
SIG25_xsection_dimensioned.jpg
QCB referenceOutline dimensions & weight
DaDiCda f9ci f9Load curveWeight
mmmmmmmmmmmmkg
SIG 855 25 01 AA LM85561075375785375538119
SIG 955 25 01 AA LM95571085385795385529137
SIG 1055 25 01 AA LM1055810953957105395530149
SIG 1155 25 01 AA LM1155910105310571153105531165
SIG 1255 25 01 AA LM12551010115311571253115532180
SIG 1355 25 01 AA LM13551110125312571353125533198
SIG 1455 25 01 AA LM14551210135313571453135534215
SIG 1555 25 01 AA LM15551310145314571553145535229
QCB referenceOuter holesInner holes20o stub gear
LanaLiniPMzFz MAX
mm mm mm KN
SIG 855 25 01 AA LM81524694246301063100
SIG 955 25 01 AA LM91528794287301073100
SIG 1055 25 01 AA LM101530894308301083100
SIG 1155 25 01 AA LM111530994309301093100
SIG 1255 25 01 AA LM121536109436103010103100
SIG 1355 25 01 AA LM131542119442113010113100
SIG 1455 25 01 AA LM141542129442123010123100
SIG 1555 25 01 AA LM151548139448133010133100
Standard grease fitting# at least 4x M8 on outer ring



Interchange information

The SIG25 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.


00 Type without pilot diameter

SIG 855 25 00 AAVSI 25 0755 N
SIG 955 25 00 AAVSI 25 0855 N
SIG 1055 25 00 AAVSI 25 0955 N
SIG 1155 25 00 AAVSI 25 1055 N
SIG 1255 25 00 AA
SIG 1355 25 00 AA
SIG 1455 25 00 AA
SIG 1555 25 00 AA


01 Type with pilot diameter

SIG 855 25 01 AAVSI 25 0755 N ZTI 855 25 00 B112.25.0755.00.00.10
SIG 955 25 01 AAVSI 25 0855 N ZTI 955 25 00 B112.25.0855.00.00.10
SIG 1055 25 01 AAVSI 25 0955 N ZTI 1055 25 00 B112.25.0955.00.00.10
SIG 1155 25 01 AAVSI 25 1055 N ZTI 1155 25 00 B112.25.1055.00.00.10
SIG 1255 25 01 AA112.25.1155.00.00.10
SIG 1355 25 01 AA112.25.1255.00.00.10
SIG 1455 25 01 AA112.25.1355.00.00.10
SIG 1555 25 01 AA112.25.1455.00.00.10

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

Materials

From 2015 all SIG25 Metric Series will be manufactured in 42CrMo4 steel. Smaller units are usually produced in 50Mn / C45.

Internal construction

Standard SIG20 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 SIG20 Metric series has a standard 20° pressure angle, uncorrected spur gear cut into the inner ring.

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. SIG25 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 8.8 bolts.The load point should be well under the relevant load curve for long life.

Grade 10.9 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!

ASSOCIATED PRODUCTS

Need help?

01952 222400

QCB referencePDF PrintCAD.dwgMODEL.STP
SIG 855 25 01 CC LMSIG 855 25.pdfSIG 855 25.dwgSIG 855 25.STP
SIG 955 25 01 CC LMSIG 955 25.pdfSIG 955 25.dwgSIG 955 25.STP

SIG 1055 25 01 CC LM

SIG 1055 25.pdfSIG 1055 25.dwgSIG 1055 25.STP
SIG 1155 25 01 CC LMSIG 1155 25.pdfSIG 1155 25.dwgSIG 1155 25.STP
SIG 1255 25 01 CC LMSIG 1255 25.pdfSIG 1255 25.dwgSIG 1255 25.STP
SIG 1355 25 01 CC LMSIG 1355 25.pdfSIG 1355 25.dwgSIG 1355 25.STP
SIG 1455 25 01 AA LMSIG 1455 25.pdfSIG 1455 25.dwgSIG 1455 25.STP
SIG 1555 25 01 AA LMSIG 1555 25.pdfSIG 1555 25.dwgSIG 1555 25.STP

Associated Products


Do you have a special project?

Need some advice? We can help!


oemsales@nbcgroup.co.uk

01952 222300