SUN 25 Metric Series

Two solid section rings separated by a 25mm ball set, 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.


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QCB referenceOutline dimensions & weight
DaDiUCda f9di H9

Load

curve

Weight
mmmmmmmmmmmmkg
SUN 555 25 01 AA LM555355457453553357153
SUN 655 25 05 AA LM655455557553653457265
SUN 755 25 01 AA LM755555657653753557376
SUN 855 25 01 AA LM855655757753853657490
SUN 955 25 01 AA LM9557558578539537575101
SUN 1055 25 01 AA LM105585595795310538576115
SUN 1155 25 01 AA LM11559551057105311539577128
SUN 1255 25 01 AA LM1255105511571153125310578139
SUN 1355 25 01 AA LM1355115512571253135311579148
SUN 1455 25 01 AA LM14551255135713531453125710161
SUN 1555 25 01 AA LM15551355145714531553135711171
QCB referenceOuter holesInner holes
LanaLini
mm mm
SUN 555 25 01 AA LM5451839518
SUN 655 25 05 AA LM6152049520
SUN 755 25 01 AA LM7152459524
SUN 855 25 01 AA LM8152469524
SUN 955 25 01 AA LM9152879528
SUN 1055 25 01 AA LM10153089530
SUN 1155 25 01 AA LM11153099530
SUN 1255 25 01 AA LM121536109536
SUN 1355 25 01 AA LM131542119542
SUN 1455 25 01 AA LM141542129542
SUN 1555 25 01 AA LM155548139548
Standard grease fitting# at least 2x M8 on inner and outer rings

Interchange information

The SUN25 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 Series without pilot diameter


SUN 855 25 00 CCVSU 25 0755 N
SUN 955 25 00 CCVSU 25 0855 N
SUN 1055 25 00 AAVSU 25 0955 N
SUN 1155 25 00 AAVSU 25 1055 N
SUN 1255 25 00 AA
SUN 1355 25 00 AA
SUN 1455 25 00 AA
SUN 1555 25 00 AA




01 Series with pilot diameter


SUN 855 25 01 CCVSU 25 0755 N ZTSD 855 25 00 B113.25.0755.00.00.10
SUN 955 25 01 CCVSU 25 0855 N ZTSD 955 25 00 B113.25.0855.00.00.10
SUN 1055 25 01 AAVSU 25 0955 N ZTSD 1055 25 00 B113.25.0955.00.00.10
SUN 1155 25 01 AAVSU 25 1055 N ZTSD 1155 25 00 B113.25.1055.00.00.10
SUN 1255 25 01 AA113.25.1155.00.00.10
SUN 1355 25 01 AA113.25.1255.00.00.10
SUN 1455 25 01 AA113.25.1355.00.00.10
SUN 1555 25 01 AA113.25.1455.00.00.10



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 SUN25 Metric Series slewing rings >1000mm outer diameter will be manufactured in 42CrMo4 steel. Smaller units are usually produced in 50Mn / C45.

Internal construction

Standard SUN25 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 SUN25 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. SUN25 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
SUN 855 25 01 CC LMSUN 855 25.pdfSUN 855 25.dwgSUN 855 25.STP
SUN 955 25 01 CC LMSUN 955 25.pdfSUN 955 25.dwgSUN 955 25.STP

SUN 1055 25 01 CC LM

SUN 1055 25.pdfSUN 1055 25.dwgSUN 1055 25.STP
SUN 1155 25 01 CC LMSUN 1155 25.pdfSUN 1155 25.dwgSUN 1155 25.STP
SUN 1255 25 01 CC LMSUN 1255 25.pdfSUN 1255 25.dwgSUN 1255 25.STP
SUN 1355 25 01 CC LMSUN 1355 25.pdfSUN 1355 25.dwgSUN 1355 25.STP
SUN 1455 25 01 AA LMSUN 1455 25.pdfSUN 1455 25.dwgSUN 1455 25.STP
SUN 1555 25 01 AA LMSUN 1555 25.pdfSUN 1555 25.dwgSUN 1555 25.STP

Associated Products


Do you have a special project?

Need some advice? We can help!


oemsales@nbcgroup.co.uk

01952 222300