SIG Triple roller series

SIG 3-Row Series



Triple row bearings exhibit the highest load capacity/diameter ratio. 

The QCB range of triple roller bearings is more extensive than most, starting with smaller units that have found use in a wide range of industrial applications where space is limited, listed below.

The larger QCB sizes mimic those of other manufacturers but many are either modified for specific applications or designed in confidence.  Used in conjunction with multiple planetary geared motors tremendous amounts of power can be transferred.

Unless you are an OEM customer, these will only be made to order. 

As a result we have chosen to offer only the most basic dimension information on this site and invite you to contact us to discuss your specific requirements, or send the Enquiry/Design Data form through to us with your project details.

Series dimensions

(Dimensions and weights are illustrative. QCB reserves the right to modify any specification in our quest for continuous product improvement)

Outline dimensionsOuter holesInner holes20 Deg stub gearWeight
QCB referenceDaDiHLanaLiniPMzFz Max(approx)
SIG 634 3 25 01 AA LM634338148598244022434265772224
SIG 694 3 25 01 AA LM694398148658244622440266772240
SIG 764 3 25 01 AA LM764459148728285322846485896270
SIG 844 3 25 01 AA LM844539148808286122854486896300
SIG 964 3 32 01 AA LM96459418292036680366001060120500
SIG 1064 3 32 01 AA LM1064694182102036780367001070120600
SIG 1164 3 32 01 AA LM1164785182112040880407921266144680
SIG 1284 3 32 01 AA LM12849051821240401000409121276144820
SIG 1445 3 40 01 AA LM144598621013934511074599414711681020
SIG 1595 3 40 01 AA LM15951140210154345125745114814821681300


Interchange information

In our experience, these bearings are not easily interchangeable as application specific modifications such as bolt number, style, grease point location are variable.


Not sure what you need? Contact us and we will advise a solution based on your needs and budget!
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