Plain Bearings Simplicity ®
Load Capacity of Liner Simplicity bearings can carry from 4 to 20 times the load of a linear ball bearing.
5000#
5000#
5000# 5000#
1000#
Bearing Material
Static Load Capacity
FrelonGOLD ®
3000 psi or 210.9 kgf/cm 2 1500 psi or 105.45 kgf/cm 2
Frelon ® J / Frelon ® W
LINEAR BALL BEARING (1 x LOAD)
SIMPLICITY (20 x LOAD)
• Allows the engineer to maintain performance in a smaller designed package Example: Simplicity 1/2" I.D. = 1" I.D. linear ball bearing • Shock loads and vibration are absorbed • Metal–to–metal contact is eliminated providing a smoother, quieter running assembly
Speed Characteristics Exceeding these speeds causes frictional heat and accelerates liner wear.
No Lube Continuous Motion
No Lube Intermittent Motion
Bearing Material
With Lubrication*
300 sfm
825 sfm
825 sfm
FrelonGOLD ®
60 in/sec.
165 in./sec. 4.19 m/sec.
165 in./sec. 4.19 m/sec.
1.524 m/sec.
140 sfm
400 sfm
400 sfm
Frelon ® J / Frelon ® W
28 in./sec.
80 in./sec. 2.03 m/sec.
80 in./sec. 2.03 m/sec.
0.711 m/sec.
*Depending on the lubrication used, loads, and frequency of continuous or intermittent motion, speeds can be in excess of the numbers shown.
Performance Ratings (for Linear Motion) Plain bearings are rated by their limiting PV, which is a combination of load over a given surface area and the velocity.
Bearing Material
MAX. “V” (No Lubrication) 300 sfm or 91.44 m/min. 140 sfm or 42.66 m/min.
MAX. “PV”
MAX. “P”
3000 psi or 210.9 kgf/cm 2 1500 psi or 105.45 kgf/cm 2
20000 (psi) x ft./min.) or 430 (kgf/cm 2 x m/min.) 10000 (psi x ft./min.) or 215 (kgf/cm 2 x m/min.)
FrelonGOLD ®
PV CHART (Dry Running)
SPEED (m/min.)
3.04 6.09 9.14 12.19 15.24 18.29 21.34 24.38 27.43 30.48 33.53 36.58 39.62
Frelon ® J / Frelon ® W
50 100 150 200 250 300 350 400
10.55 14.06 17.58 21.09 24.61 28.12
PV = The performance measurement of plain bearings PV = P x V where P = pressure (load) in psi (kgf/cm 2 ) V = velocity (speed) in sfm (m/min.) Note: All three parameters must be met by an application for the bearing to perform properly.
Frelon GOLD
3.52 7.03
Frelon J / Frelon W
0 0 10 20 30 40 50 60 70 80 90 100 110 120 130
SPEED (ft/min.)
pbclinear.com • Engineering Your Linear Motion Solutions 11
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