Page 560 - SKF-bearing-housings

Two-bearing housings PD series

Designation system for PD two-bearing units
PDPF 220
PDNB 305 DD

Housing series
PDN Housing for normal radial and axial loads
PDP Housing for predominant or alternating axial loads
PDR Housing for heavy radial loads
Size identification
Non-locating bearing position Locating bearing position Housing series
A Deep groove ball bearing Two angular contact ball bearings PDN
B 1) Deep groove ball bearing Deep groove ball bearing PDN
D Cylindrical roller bearing Cylindrical roller bearing PDN
E Cylindrical roller bearing Deep groove ball bearing PDN
F 1) Cylindrical roller bearing Two angular contact ball bearings PDN, PDP
J 1) Cylindrical roller bearing Cylindrical roller bearing + PDR
Deep groove ball bearing
L Spherical roller bearing Spherical roller bearing PDN
Size identification
2(00) Housing for bearings in the 62, 72, NU 2, NJ 2, NJ 22, NJ 23, 222 and 223 series
3(00) Housing for bearings in the 63, 73, NU 3 and NJ 3 series
..(00) Size code of the bearings, (00) x 5 = bearing bore diameter [mm]
Suffixes
DD Unit supplied with shaft spacers and a large bore in the covers at both sides
U Unit supplied without shaft spacers (PDP and PDR units only)

1) Standard units include PDNB, PDPF and PDRJ

Fig. 1

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