Small Nylon Pulleys

SAVAs Bearing Mounted Nylon Pulleys are primarily engineered and designed for use with small cables and cords. They offer greatly increased mechanical efficiency over plastic pulleys and are considerably less expensive than bearing mounted pulleys now available. SAVA pulleys are being used on recorders, metering equipment, indicators, control mechanisms, drive systems, etc.Two basic types of bearing mounted pulleys are offered. The SP series is used where a more precise shielded bearing is required and the UP series where a commercial type bearing is adequate. These are described in more detail with the charts. In addition to the pulleys shown, SAVA can manufacture special diameters and shapes to fit your requirements.In all cases where CABLE SIZES TO are noted, it should be understood that this includes the coating, if any.SP Series PulleysThe SP series pulleys below incorporate a precision, double shielded, lubricated single row ball bearing which is ABEC3 precision built to give all the accuracy needed to satisfy the load, speed, and life expectancy requirements of many applications now using more expensive ultra-precise bearings.Please note that pulleys with extended inner races are more expensive than those without extensions.SAVAItem REF. OldPart No. Dimensions CableSizesTo Load*(Lbs) A+-.0005 B+-.020 C+-.020 D+-.010 E+-.010 F1+.000-.005 RREF. SP2031SP2031E SP-231SP-231-E .125 .310 .375 .110 .093 N/A.141 .015 1/32 10 SP2044SP2044E SP-243SP-243-E .125 .437 .500 .156 .125 N/A.188 .025 3/64 10 SP2050SP2050E SP-250SP-250-E .125 .500 .625 .156 .125 N/A.188 .015 1/32 10 SP2063SP2063E SP-263SP-263-E .125 .625 .750 .156 .156 N/A.188 .025 3/64 10 SP3050E SP-248-E .1875 .500 .625 .125 .125 .156 .015 1/32 10 SP3088 SP-387 .1875 .885 1.070 .250 .219 N/A .025 3/64 90 SP3106 SP-310 .1875 1.063 1.250 .250 .219 N/A .035 1/16 90 SP4088SP4088E SP-487SP-487-E .250.250 .885 1.070 .281.188 .219.188 N/A.219 .025 3/64 90 SP4125 SP-613 .250 1.250 1.500 .281 .281 N/A .050 3/32 90 SP4138 SP-614 .250 1.375 1.750 .281 .281 N/A .065 1/8 90