The following table is a guide to identify the proper PSC Coupling size to replace your current flexible disc coupling brand. Please reference the product specifications prior to finalizing the replacement size. Custom options are also available to meet your exact needs.

PSC KTRRexnord (Thomas)Regal Beloit
(Kop-Flex)
LovejoyAltra
(TB Woods)
ABB
(Dodge)
John Crane
(Metastream)
57-516Radex(25-4,30-4,
35-4,42-4)
Rigiflex (35-4,50-4)
XTSR52/XTSR71
(704,1004,726)
71(150,175)
52(125)
KD2 (023, 103)SX4(80,90)
SX6(90-6)
DI6(90-6)
AP(5,10,15,20)
TFI(17,27)
94L(007,0014,0028)
57-696Radex (50-4,60-6)
Rigiflex (65-4)
XTSR52/XTSR71
(826,996)
71 (225,300)
52 (162)
63(162)
AMR 162
KD2(153)
KD10/20/21
(053,103)
SX4(104)
SX6(110-6)
DI6(110-6)
AP(25,30)
TFI(38)
115L(0045,0090)
57-906Radex (70-6)
Rigiflex (75-6)
XTSR52/XTSR71
(1088)
71 (350)
71-8 (225)
52 (200)
63(200)
AMR (200, 225)
KD2 (203)
KD10/20/21
(153)
SX6(132-6)
DI6(132-6)
AP(35)
GP(311)
TFI(140)
139L(0175)
57-1058Radex (80-6,85-6)
Rigiflex (85-6,110-6)
XTSR52/XTSR71
(1298)
71(375,412)
71-8(262)
52(225,262)
63(225,262)
AMR (262, 312)
KD2(253, 303) KD10/20/21
(204)
SX6(158-6, 185-6)
DI6(158-6, 185-6)
GP(321,332)
TFI(260,400)
165,
193
L(0265)
TSC/TLC (300)
57-1358Radex (90-6,105-6)
Rigiflex (120-6)
XTSR52/XTSR71
(1548,1698)
71(462,512)
71-8(312,350)
52(312,350)
63(312)
AMR (350, 375)
KD2(353)
KD10/20/21
(254)
SX6(202-6)
DI6(228-6)
GP(346)
TFI(750)
210,
236
L(0525,0810) TSC/TLC(0500,
0750)
57-1708Radex (115-6,135-6)
Rigiflex (140-6,160-6)
XTSR52/XTSR71
(1928,2068)
71(562,600)
71-8(375,425)
52(375,425,450)
63(350,375)
AMR (425, 450)
KD2(403, 453) KD10/20/21
(304,354)
SX6(255-6, 278-6)
SX8(278-8)
DI6(255-6, 278-6)
DI8(278-8)
GP(380,412)
TFI(1310,1900)
263,
286
L(1150,1560)
TSC/TLC (1050,
1500)
57-2048Radex (136-6,138-8,
156-6)
Rigiflex (166-6,168-8,
196-6,198-8)
XTSR52/XTSR71
(2278,2468)
71-8(450,500)
52(500,550)
63(425,450)
AMR (500, 550)
KD10/20/21
(404,454)
SX6(302-6,325-6,
345-6)
SX8(302-8)
DI6(302-6, 325-6,
345-6)
DI8(302-8)
GP(419, 424)
TFI(2500,3300)
310L(1850, 3000)
TSC/TLC (2000,
2600)
57-2558Radex(158-8,166-6,
168-8,186-6,188-8,
206-6)
Rigiflex (216-6,218-8,
256-6)
XTSR52/XTSR71
(2698,2888,3058)
71-8(550,600)
52(600)
63(500,550)
AMR (600, 700)
KD10/20/21
(504,554)
SX6(380-6, 410-6)
SX8(325-8, 345-8)
DI6(380-6, 410-6)
DI8(325-8, 345-8)
GP(444)
TFI(6000)
MTOL(4200,6000) TSC/TLC(3350,
4250, 6010)
57-3008Radex (246-6, 208-8) Rigiflex (306-6, 258-8, 308-8)XTSR52/XTSR71
(3358,3668,3908)
71-8(700,750) 52(700,750,800) 63(700)
AMR (750, 800, 850)
KD10/20/21(604)SX6(440-6)
SX8(440-8)
DI6(380-6, 410-6) DI8(380-8, 410-8, 440-8)
GP(483) TFI(8500, 12000)MTOL(9009, 9012) TSC/TLC(8500,
9013)
57-3438Radex (286-6, 248-8) Rigiflex (346-6, 348-8)XTSR52/XTSR71
(4178,4588) 52(850,925)
63(750)
AMR (925, 1000)
KD10/20/21(705) SX8(475-8, 505-8) DI6(440-6)
DI8(475-8, 505-8)
GP(511)MTOL(9015) TSC/TLC(9017)
57-4008Radex (336-6, 288-8) Rigiflex (406-6, 408-8)XTSR52/XTSR71
(4918,5258)
52(1000, 1100)
AMR (1100, 1200, 1300)
KD10/20/21(805)SX8(540-8, 570-8) DI8(540-8, 570-8)GP(520, 525)MTOL(9025) TSC/TLC(9021)
57-4848Radex (338-8)52(1200,1300)
AMR (1550)
KD10/20/21(905)MTOGP(530)MTOTSC/TLC(9036)
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