Metric Screw Bearing Blocks

Joyce/Dayton  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.

See the table below for dimensional details based on metric screw part numbers. Bearing blocks used in screw & nut assemblies may not be rated for the same static load as the screws or nuts with which they are used. Contact Joyce/Dayton to verify that bearing blocks are adequately sized for the required loads.

Standard bearing blocks are available for screw diameters between 20 mm. and 55 mm. diameters. See the chart below for more details.

SB Bearing Blocks

simple single bearing block SB

Screw NumberBearing Mount No.ABCDEFGHIJK
TS020R005A SB-12 3.000 1.875 1.000 0.375 1.125 1.125 2.250 0.672 1.344 .281 (4x) .406 Thru
TS020R005A .625 C'Bore
  .875 Deep
TS026R006A SB-15 3.500 2.125 1.125 0.375 1.375 1.250 2.500 0.813 1.625 .281 (4x) .406 Thru
  .625 C'Bore
  1.000 Deep
TS030R006A SB-20 4.500 2.750 1.438 0.500 1.750 1.625 3.250 0.938 1.875 .469 (4x) .656 Thru
  1.000 C'Bore
  1.312 Deep
TS040R009A SB-25 6.500 3.690 1.875 0.875 2.000 2.375 4.750 0.970 1.940 .656 (4x) .906 Thru
  1.375 C'Bore
  1.750 Deep
TS055R012A SB-30 6.500 3.690 1.875 0.875 2.000 2.375 4.750 1.156 2.312 .656 (4x) .906 Thru
  1.375 C'Bore
  2.060 Deep

 

FB Bearing Blocks

fixed double bearing blocks FB10-15m

Fixed double bearing blocks FB20-30m

Screw NumberBearing Mount No.ABCDEFGHIJKL
TS020R005A FB-12 3.000 1.875 1.000 1.125 4.262 0.438 2.250 1.688 1.063 2.125 .250 Thru .406 Thru
TS020R005A .375 C'Bore .625 C'Bore
  #5 Taper Pin 1.130 Deep
TS026R006A FB-15 3.500 2.125 1.125 1.250 4.585 0.500 2.500 1.875 1.188 2.375 .250 Thru .406 Thru
  .375 C'Bore .625 C'Bore
  #5 Taper Pin 1.310 Deep
TS030R006A FB-20 4.500 2.750 1.438 1.625 5.015 0.937 3.250 N/A 2.125 2.750 .437 Thru .688 Thru
  .687 C'Bore 1.000 C'Bore
  #8 Taper Pin 1.625 Deep
TS040R009A FB-25 6.500 3.690 1.875 2.375 5.977 0.970 4.750 N/A 2.750 3.250 .437 Thru .937 Thru
  .687 C'Bore 1.375 C'Bore
  #8 Taper Pin 2.250 Deep
TS055R012A FB-30 6.500 3.690 1.875 2.375 6.595 1.156 4.750 N/A 3.225 3.725 .437 Thru .937 Thru
  .687 C'Bore 1.375 C'Bore
  #8 Taper Pin 2.250 Deep

 

DB Bearing Blocks

simple double bearign block DB10-30m

simple double bearing blocks DB45m

Screw NumberBearing Mount No.ABCDEFGHIJKL
TS020R005A DB-12 3.000 1.875 1.000 0.375 1.125 1.125 2.250 0.672 1.344 .281 (4x) .406 Thru N/A
TS020R005A .625 C'Bore
  .875 Deep
TS026R006A DB-15 3.500 2.125 1.125 0.375 1.375 1.250 2.500 0.813 1.625 .281 (4x) .406 Thru N/A
  .625 C'Bore
  1.000 Deep
TS030R006A DB-20 4.500 2.750 1.438 0.500 1.750 1.625 3.250 0.938 1.875 .469 (4x) .656 Thru N/A
  1.000 C'Bore
  1.312 Deep
TS040R009A DB-25 6.500 3.690 1.875 0.875 2.000 2.375 4.750 0.970 1.940 .656 (4x) .906 Thru N/A
  1.375 C'Bore
  1.750 Deep
TS055R012A DB-30 6.500 3.690 1.875 0.875 2.000 2.375 4.750 1.156 2.312 .656 (4x) .906 Thru N/A
  1.375 C'Bore
  2.060 Deep