Bearing Interchange

Bearing Prefix

RHP Designation R & M HOFFMANN POLLARD
XLJ XLJ XLS XLS
LJ LJ LS LS
MJ MJ (6*) MS MS
NLJ NLJ ULS RL
NMJ NMJ UMS RM
LJT LJT (5*) LS - - ACD LS - - GW
MJT MJT MS - - ACD MS - - GW
 
QJ 2 - - DLJT - - J - - - CDS SI 1 - -
QJL (1*) DLJT - - J L - - CDS SILS - -
QJ 3 - - DMJT - - J 3 - - CDS SI 3 - -
QJM - - DMJT - - J M - - CDS SIMS - -
QJ 4 - - DHJT 5 - - CDS SI 5 - -
Q 2 - -   (4*) 1 - - CD SO 1 - -
QL - -   L - - CD SOLS - -
Q 3 - -   3 - - CD SO 3 - -
QM - -   M - - CD SOMS - -
Q 4 - -   5 - - CD SO 5 - -
With R&M QJ Type: J = Non Loc Type No J = Loc Type
LDJK LDJ - - K    
MDJK MDJ - - K    
XLRJ XLRJ RXLS  
N 2 - - LRJ - - R 1 - - R 1 - -
N 3 - - MRJ - - R 3 - - R 3 - -
N 4 - - HRJ - - R 5 - - R 5 - -
LRJ LRJ RLS RLS
MRJ MRJ RMS RMS
LRJA LRJA (2*) RL - - L RLS - - L
LRJB LRJB RL - - D RLS - - D
LLRJ LLRJ RL - - E RLS - - E
LLRJA LLRJA `RL - - P RLS - - P
LLRJB LLRJB RL - - F RLS - -F
LLRJN LLRJN (7*) RL - - LL RLS - - LL
MRJA MRJA RM - - L RMS - - L
MRJB MRJB RM - - D RMS - - D
MMRJ MMRJ RM - - E RMS - - E
MMRJA MMRJA RM - - P RMS - - P
MMRJB MMRJB RM - - F RMS - - F
MMRJN MMRJN RM - - LL RMS - - LL
XLT (metric) XLT XLM  
XLT (imperial) XLT XW  
LT LT W W
MT MT MW MW
HT HT (3*) HW HW
SLT SLT WSP  
SLTS SLTS WZ  
SMT SMT MR  
SMTS SMTS MZ  
SHT SHT HR  
SHTS SHTS HZ  
DMT DMT MD  
DMTS DMTS MX  
DTH DTH D  
M 2 - - LJBL - -    
M 3 - - MJBL - -    
72 - - LJT - - 1 - - ACD 1 - - GW
73 - - MJT - - 3 - - ACD 3 - - GW
74 - - HJT - - 5 - - ACD 5 - - GW

Bore Sizes

RHP HOFFMANN
1/2 5
5/8 7
3/4 8
7/8 9
1 10
1 1/8 11
1 1/4 12
1 3/8 12 1/2
1 1/2 13
1 5/8 13 1/2
1 3/4 14
1 7/8 14 1/2
2 15
2 1/4 16
2 1/2 17
2 3/4 18
3 19
3 1/4 19 1/2
3 1/2 20
3 3/4 20 1/2
4 21
4 1/4 21 1/2
4 1/2 22
4 3/4 22 1/2
5 23
5 1/2 23 1/2
6 24
6 1/2 24 1/2
7 25
7 1/2 25 1/2
8 26
8 1/2 26 1/2
9 27
9 1/2 27 1/2
10 28
10 1/2 28 1/2
11 29
11 1/2 29 1/2
12 30
12 1/2 30 1/2
13 31
14 32
15 33

Examples

(1*) DLJT 25 J R&M = QJ 205
(2*) RL 21 L Hoffmann = LRJA 4
(3*) HW 17 Hoffmann = HT 2 1/2
(4*) 125 CD Hoffmann = Q 205
(5*) LS 14 ½ ACD Hoffmann = LJT 1 7/8
(6*) MS 11 Hoffmann = MJ 1 1/8
(7*) RL 19 LL Hoffmann = LLRJN 3