Medium duty casters, zinc plated + STW wheels
STW Series -40°F +536°F     SGX100 SGX100 SGX100 SGX100C
PB BR BT C
3"x1-5/8" 4-3/8" US2 US2 US2 1-1/2" 418 SGZ80US SGZ80BRUS SGZ80BTUS
4"x-1-5/8" 5-1/8" US2 US2 US2 1-5/8" 463 SGZ100US SGZ100BRUS SGZ100BTUS SGZ100CUS
5"x-1-3/4" 6-1/8" US2 US2 US2 1-3/4" 507 SGZ12545US SGZ12545BRUS
6"x-1-3/4" 7-1/4" US2 US2 US2 1-7/8" 551 SGZ15045US SGZ15045BRUS
6"x2-3/8" 7-1/4" US1 US1 US1 2-1/16" 684 SGZ15060US
8"x2-3/8" 9-3/16" US1 US1 US1 2-3/16" 750 SGZ20060US
        PB BR BT C
        Plain bore
Heavy duty casters, zinc plated + STW wheels
STW Series -40°F +536°F     SGX100 SGX100 SGX100 SGX100C
PB BR BT C
3"x1-5/8" 4-7/16" US2 US2 US2 1-1/2" 485 SGZ80PUS SGZ80PBRUS SGZ80PBTUS
4"x-1-5/8" 5-3/16" US2 US2 US2 1-5/8" 529 SGZ100PUS SGZ100PBRUS SGZ100PBTUS SGZ100PCUS
5"x-1-3/4" 6-1/4" US2 US2 US2 1-3/4" 573 SGZ12545PUS SGZ12545PBRUS
6"x-1-3/4" 7-3/8" US2 US2 US2 1-7/8" 617 SGZ15045PUS SGZ15045BPRUS
6"x2-3/8" 7-3/8" US1 US1 US1 2-1/16" 750 SGZ15060PUS
8"x2-3/8" 9-11/32" US1 US1 US1 2-3/16" 815 SGZ20060PUS
        PB BR BT C
        Plain bore
Bolt hole casters, zinc plated + STW wheels
STW Series -40°F +536°F   SPX100 SPX100BR SPX100BT SPX100C
PB BR BT C
3"x1-5/8" 4-3/8" 3-1/16" 1/2" 1-1/2" 418 SPZ80US SPZ80BRUS SPZ80BTUS
4"x-1-5/8" 5-1/8" 3-1/16" 1/2" 1-5/8" 463 SPZ100US SPZ100BRUS SPZ100BTUS SPZ100CUS
5"x-1-3/4" 6-1/8" 3-1/16" 1/2" 1-3/4" 507 SPZ12545US SPZ12545BRUS
6"x-1-3/4" 7-1/4" 3-1/16" 1/2" 1-7/8" 551 SPZ15045US SPZ15045BRUS
6"x2-3/8" 7-1/4" 4" 3/8" 2-1/16" 684 SPZ15060US
8"x2-3/8" 9-3/16" 4" 3/8" 2-3/16" 750 SPZ20060US
      PB BR BT C
        Plain bore
Fixed casters, zinc plated + STW wheels
STW Series -40°F +536°F   SFX100 SFX100 SFX100 SFX100
PB BR BT C
3"x1-5/8" 4-3/8" US2 US2 US2 485 SFZ80US SFZ80BRUS SFZ80BTUS
4"x-1-5/8" 5-1/8" US2 US2 US2 529 SFZ100US SFZ100BRUS SFZ100BTUS SFZ100CUS
5"x-1-3/4" 6-1/8" US2 US2 US2 573 SFZ12545US SFZ12545BRUS
6"x-1-3/4" 7-1/4" US2 US2 US2 617 SFZ15045US SFZ15045BRUS
6"x2-3/8" 7-1/4" US1 US1 US1 750 SFZ15060US
8"x2-3/8" 9-3/16" US1 US1 US1 815 SFZ20060US
      PB BR BT C
      Plain bore

Front total brake for high and low temperatures available for all castors except fixed, add the suffix "FA" to standard caster code