These units consist of a double-sealed single row deep groove
bearing, and cast iron(or other material) housing in various
configurations.

Models: UC, UCP, UCF, UCFL, UCT, UCFC, UCPH, UCPA
UCHA, UCFB, UCFA, UCC, UCPP, UCPF, UCPFL
UK, UKP, UKF, UKFL, UKT, UKFC, UKPH, UKPA
UKHA, UKFB, UKFA, UKC, UKPP, UKPF, UKPFL
NA, NAP, NAF, NAFL, NAT, NAFC, NAPH, NAPA
NAHA, NAFB, NAFA, NAC, NAPP, NAPF, NAPFL
SA, SAP, SAF, SAFL, SAT, SAFC, SAPH, SAPA
SAC, SALP, SALF, SAFD, SAPP, SAPF, SAPFL
SB, SBP, SBF, SBFL, SBT, SBFC, SBPH, SBPA, SBC, SBLP, SBLF, SBFD, SBPP, SBPF, SBPFL