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PV Calculation

PV is a means of measuring the performance capabilities of bearings.

P is expressed as pressure or pounds per square inch on the projected area of the bearing. V is velocity in feet per minute of the wear surface (surface feet per minute).

For sleeve (plain) bearings, the surface speed is .262 (pi divided by 12) x RPM x shaft diameter in inches. P is equal to the load on the bearing in pounds divided by the projected area in square inches. For sleeve (plain) bearings, the projected area is the length x the inside diameter of the bearing.

PV is then obtained by multiplying P x V as shown in the following example:

¾” shaft @ 341 RPM, 90 lb. total load, bearing length 1”. V = .262 x RPM x shaft diameter, or .262 x 341 x .750 = 67 sfpm.

P = total load divided by projected area (area = .750 x 1.0 = .75 sq. in.), or 90 lbs. divided by .75 = 120 psi.

PV = 120 psi x 67 sfpm = 8040 PV.

 

 

P VALUE (MAX)

V VALUE (MAX)

PV VALUE (MAX)

Cast Bronze C93200 Sleeve (Plain) Bearings

4,000

750

75,000

Cast Bronze C93200 Sleeve (Plain) Metric Bearings

4,000

750

75,000

Cast Bronze C93200 Flanged Metric Bearings

4,000

750

75,000

C93200 Solid Bronze Bars

4,000

750

75,000

C93200 Cored Bronze Bars

4,000

750

75,000

C93200 Centrifugal Bronze Bars

4,000

750

75,000

C93200 Bronze Wearplate

4,000

750

75,000

B04 Solid Bronze Bars

4,000

500

75,000

B04 Cored Bronze Bars

4,000

500

75,000

B04 Centrifugal Bronze Bars

4,000

500

75,000

C93700 Solid Bronze Bars

4,000

1,000

85,000

C93700 Cored Bronze Bars

4,000

1,000

85,000

C93700 Centrifugal Bronze Bars

4,000

1,000

85,000

C93800 Solid Bronze Bars

2,500

1,000

75,000

C938 Cored Bronze Bars

2,500

1,000

75,000

C938 Centrifugal Bronze Bars

2,500

1,000

75,000

C90300 Solid Bronze Bars

5,000

250

90,000

C90300 Centrifugal Bronze Bars

5,000

250

90,000

C90700 Solid Bronze Bars

5,000

250

100,000

C90700 Centrifugal Bronze Bars

5,000

250

100,000

C86300 Solid Manganese Bronze Bars

8,000

150

150,000

C86300 Cored Manganese Bronze Bars

8,000

150

150,000

C86300 Centrifugal Manganese Bronze Bars

8,000

150

150,000

C95400 Solid Aluminum Bronze Bars

6,000

250

125,000

C95400 Cored Aluminum Bronze Bars

6,000

250

125,000

C95400 Centrifugal Aluminum Bronze Bars

6,000

250

125,000

C95400 Aluminum Bronze Wearplate

6,000

250

125,000

C95500 Solid Aluminum Bronze Bars

7,000

300

135,000

C95500 Cored Aluminum Bronze Bars

7,000

300

135,000

C95500 Centrifugal Aluminum Bronze Bars

7,000

300

135,000

C95900 Solid Aluminum Bronze Bars

8,000

100

150,000

C95900 Aluminum Bronze Wearplate

8,000

100

150,000

Powdered Metal Sleeve (Plain) Bearings

2,000

1,200

50,000

Powdered Metal Sleeve (Plain) Metric Bearings

2,000

1,200

50,000

Powdered Metal Flanged Bearings

2,000

1,200

50,000

Powdered Metal Flanged Metric Bearings

2,000

1,200

50,000

Powdered Metal Thrust Washers

2,000

1,200

50,000

Powdered Metal Extra Sleeve (Plain) Bearings

2,000

1,200

50,000

Powdered Metal Extra Flanged Bearings

2,000

1,200

50,000

Powdered Metal Extra Thrust Washers

2,000

1,200

50,000

Powdered Metal ECO Sleeve (Plain) Bearings

2,000

1,200

50,000

Powdered Metal ECO Flanged Bearings

2,000

1,200

50,000

Powdered Metal ECO Thrust Washers

2,000

1,200

50,000

Powdered Metal Dri-Plane Sleeve (Plain) Bearings

1,600

1,000

40,000

Powdered Metal Dri-Plane Flanged Bearings

1,600

1,000

40,000

Powdered Metal Dri-Plane Thrust Washers

1,600

1,000

40,000

Powdered Metal BB-16 Sleeve (Plain) Bearings

8,000

35

75,000

Powdered Metal BB-16 Flanged Bearings

8,000

35

75,000

Powdered Metal BB-16 Thrust Washers

8,000

35

75,000

Powdered Metal Cored Bars

2,000

1,200

50,000

Powdered Metal Solid Bars

2,000

1,200

50,000

Powdered Metal Circular Discs

2,000

1,200

50,000

Powdered Metal Plate

1,600

1,000

40,000

Powdered Metal Iron Copper Solid Bar

4,000

225

35,000

Powdered Metal Iron Copper Cored Bar

4,000

225

35,000

Lube-Align Platinum Standard

2,000

1,200

50,000

Lube-Align Platinum 2 Bolt Flanged

2,000

1,200

50,000

Lube-Align Platinum 3 Bolt Flanged

2,000

1,200

50,000

Lube-Align Platinum Bore Mounting

2,000

1,200

50,000

Lube-Align Standard

2,000

1,200

50,000

Lube-Align 2 Bolt Flanged

2,000

1,200

50,000

Lube-Align 3 Bolt Flanged

2,000

1,200

50,000

Lube-Align Bore Mounting

2,000

1,200

50,000

Nylon Sleeve (Plain) Bearings

400

360

3,000

Nylon Flanged Bearings

400

360

3,000

Nylon Thrust Washers

400

360

3,000

PTFE BJ2S Sleeve (Plain) Bearings

1,100

400

30,000

PTFE BJ4S Sleeve (Plain) Bearings

1,100

400

30,000

PTFE BJ5S Sleeve (Plain) Bearings

800

400

20,000

PTFE BJ7S Sleeve (Plain) Bearings

1,050

400

40,000

PTFE BJ2F Flanged Bearings

1,100

400

30,000

PTFE BJ4F Flanged Bearings

1,100

400

30,000

PTFE BJ5F Flanged Bearings

800

400

20,000

PTFE BJ7F Flanged Bearings

1,050

400

40,000

PTFE BJ2T Thrust Washers

1,100

400

30,000

PTFE BJ4T Thrust Washers

1,100

400

30,000

PTFE BJ5T Thrust Washers

800

400

20,000

PTFE BJ2B Solid Bars

1,100

400

30,000

PTFE BJ4B Solid Bars

1,100

400

30,000

PTFE BJ5B Solid Bars

800

400

20,000

PTFE BJ7B Solid Bars

1,050

400

40,000

PTFE BJ Liner Bearings

1,500

400

20,000

PTFE Composite BSF Sleeve (Plain) Bearings

34,300

150

20,000

PTFE Composite BPT Sleeve (Plain) Bearings

20,000

500

34,200

PTFE Composite Thrust Washers .074

15,000

150

10,000

PTFE Composite Thrust Washers .078

15,000

150

10,000

BU Sleeve (Plain) Bearings INCH

36,250

1,000

51,000

BU Sleeve (Plain) Bearings METRIC

36,250

1,000

51,000

VESPEL Sleeve (Plain) Bearings

4,900

3,000

300,000

VESPEL Flanged Bearings

4,900

3,000

300,000

VESPEL Thrust Bearings

4,900

3,000

300,000

 

 

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