Metric Screw End Conditions

It is no surprise that Joyce/Dayton offers complete end machining to fit our standard bearing blocks. But did you know that we also provide finished machining for customer-specified end requirements? It is easy to order the finished screws - just send us your specifications.

Note: Our bearing mounts are sealed and greased at the factory. They are suited for high duty cycle conditions where frictional forces cause a thermal transfer of energy into the screw assembly. The resulting thermal migration will cause the screw to expand axially. Screw end machining and fit of the bearing support are designed to account for this expansion.

SB Screw End Conditions

Screw NumberBearing Mount No.o S1A1A2A3A4A5A6o A7A8A9A10A11
TS020R005A SB-12 0.4726 0.890 0.450 0.56 0.127 0.472 1.029 1.25 .469-32 UNS W-01 N-01 6301
TS022R005A 0.4723 0.125
TS026R006A SB-15 0.5908 0.930 0.490 0.56 0.127 0.512 1.094 1.38 .586-32 UNS W-02 N-02 6302
  0.5905 0.125
TS030R006A SB-20 0.7877 1.070 0.570 0.63 0.190 0.590 1.305 1.75 .781-32 UNS W-04 N-04 6304
  0.7873 0.188
TS040R009A SB-25 0.9846 1.190 0.650 0.70 0.190 0.669 1.420 2.06 .969-32 UNS W-05 N-05 6305
  0.9842 0.188
TS055R012A SB-30 1.1814 1.275 0.720 0.70 0.190 0.748 1.587 2.43 1.173-18 UNS W-06 N-06 6306
  1.1810 0.188

 

FB Screw End Conditions

Screw NumberBearing Mount No.oS1oS2A1A2A3A4A5A6A7A8A9A10A11
TS020R005A FB-12 0.4726 0.406 4.30 3.00 2.35 1.850 0.472 0.923 0.038 .469-32 UNS W-01 N-01 1/8 x 5/8
TS022R005A 0.4723 0.405
TS026R006A FB-15 0.5908 0.500 4.62 3.31 2.73 2.000 0.512 0.995 0.035 .586-32 UNS W-02 N-02 1/8 x 5/8
  0.5905 0.499
TS030R006A FB-20 0.7877 0.625 5.05 3.80 3.10 2.375 0.590 1.217 0.035 .781-32 UNS W-04 N-04 3/16 x 5/8
  0.7873 0.624
TS040R009A FB-25 0.9846 0.750 6.06 4.50 3.75 2.815 0.669 1.500 0.083 .969-32 UNS W-05 N-05 3/16 x 1
  0.9842 0.749
TS055R012A FB-30 1.1814 1.000 6.67 4.92 4.20 3.300 0.748 1.828 0.075 1.173-18 UNS W-06 N-06 1/4 x 1
  1.1810 0.999

 

DB Screw End Conditions

Screw NumberBearing Mount No.oS1oS2A1A2A3A4A5A6A7A8A9
TS020R005A DB-12 0.4726 0.406 3.29 2.00 1.566 0.472 0.000 .469-32 UNS W-01 N-01 1/8 x 5/8
TS022R005A 0.4723 0.405
TS026R006A DB-15 0.5908 0.500 3.59 2.59 2.145 0.512 0.040 .586-32 UNS W-02 N-02 1/8 x 5/8
  0.5905 0.499
TS030R006A DB-20 0.7877 0.625 4.00 2.88 2.378 0.590 0.040 .781-32 UNS W-04 N-04 3/16 x 5/8
  0.7873 0.624
TS040R009A DB-25 0.9846 0.750 4.45 2.89 2.328 0.669 0.000 .969-32 UNS W-05 N-05 3/16 x 1
  0.9842 0.749
TS055R012A DB-30 1.1814 1.000 5.33 3.60 3.047 0.748 0.063 1.173-18 UNS W-06 N-06 1/4 x 1
  1.1810 0.999