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CON-SERV Inc offers (3) basic disc bearing types: fixed, guided, and free-moving. In order to give the engineer typical dimensional data, the following criteria was adopted by CON-SERV Inc. as standard for the bearing detailed.
CON-SERV offers other types of designs; consult Engineering Department personnel for design assistance. CON-SERV can supply full friction and proof-load testing on all pot & disc bearing designs.

Standard Design Criteria:
  • Steel Type – A588 (Y.P. = 50 KSI)
  • Rotation Capacity - .02 radians
  • Maximum Pressure on Elastomer – 3500 psi for pots to 5000 psi for discs
  • Coefficient of friction - .03
  • Lateral Load Capacity – 10% of Vertical (unless noted otherwise) Load (Fixed and Guided) – Maximum for Standard Design
  • Movement ± 1” – Maximum for Standard Design


Free Moving Disc Type
Unit of Measure
Items Free Moving Disc Type
CDB-50FM (2)
Free Moving Disc Type
Free Moving Disc Type
CDB-75FM (2)
Free Moving Disc Type
Free Moving Disc Type
CDB-100FM (2)
Free Moving Disc Type
Free Moving Disc Type
CDB-125FM (2)
Free Moving Disc Type
Free Moving Disc Type
CDB-150FM (2)
Free Moving Disc Type
Type N/A Free Moving
Vertical Load (K) N/A 50 N/A 75 N/A 100 N/A 125 N/A 150
I.D. Pot (in.) N/A 5.25 N/A 5.75 N/A 6.00 N/A 6.88 N/A 7.13
A (in.) N/A 8.25 N/A 8.75 N/A 9.00 N/A 10.00 N/A 10.50
B (in.) N/A 0.75
C (in.) N/A 1.00 N/A 1.00 N/A 1.00 N/A 1.00 N/A 1.13
D (in.) N/A 3.66 N/A 3.66 N/A 3.66 N/A 3.78 N/A 3.91
E (in.) N/A 6.25 N/A 6.75 N/A 7.00 N/A 8.00 N/A 8.50
Material N/A 16 GA Stainless Steel 3/16 in. Polytetrafluoroethylene (PTFE) Thickness