Designation system for PD two-bearing units

Examples and the applicable options for PD two-bearing units are given below.

Examples

PDPF 220wherePDP =
F =
220 =

PDNB 305 DD
wherePDN =
B =
305 =
DD =

Applicable options

Series
PDNHousing for normal radial and axial loads
PDPHousing for predominant or alternating axial loads
PDRHousing for heavy radial loads

Size identification
ANon-locating bearing position
Deep groove ball bearing
Locating bearing position
Two angular contact ball bearings
Housing series
PDN
B1)Non-locating bearing position
Deep groove ball bearing
Locating bearing position
Deep groove ball bearing
Housing series
PDN
D
Non-locating bearing position
Cylindrical roller bearing
Locating bearing position
Cylindrical roller bearing
Housing series
PDN
E
Non-locating bearing position
Cylindrical roller bearing
Locating bearing position
Deep groove ball bearing 
Housing series
PDN
F1)Non-locating bearing position
Cylindrical roller bearing
Locating bearing position
Two angular contact ball bearings
Housing series
PDN, PDP
J1)

Non-locating bearing position
Cylindrical roller bearing
Locating bearing position
Cylindrical roller bearing + Deep groove ball bearing 
Housing series
PDR

LNon-locating bearing position
Spherical roller bearing
Locating bearing position

Spherical roller bearing
Housing series
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]

Suffixes1)
DDUnit supplied with shaft spacers and a large bore in the
covers at both sides
UUnit supplied without shaft spacers
(PDP and PDR units only)
  1. 1)Standard units include PDNB, PDPF and PDRJ
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