SDG housing are available for following series of bearings also:

3900, 4000, 4100
39/500, 530, 560, 600, 630, 670, 710
40/500, 530, 560, 600, 630
41/500, 530, 560.

SDG housing are available for bearings with cylindrical bore:

These bearing housings are dimensionally inter changeable and suitable to bearings of international make like SKF, FAG, NTN, ZKL, TIMKEN, etc.
For SDG type it is necessary to specify requirement for located bearing type or non located bearing type because loose locating rings (FRB) are not used
Instead, the bearing width inside the housing is machined to suit located or non located type