ENGINEERING DATA

(4) POBCO-B^® Hardwood

(UHMW)
Ultra-D^®

Lube-Filled UHMW Plus^®

(12) Repro Ultra-D

(7)
Hi-Temp. Ultra-D

(13)
Hi-Wear CPUHMW

Drywear UHMWPE

(11)
Nywear

Nylon

(10) Nylon MD

CODE LETTERS

B

U

P

UR

UH

CP

DW

NW

N

MD

P.V. Cap psi-fpm (1)

12,000

2,000

12,000

2,000

2,000

2,300

4,000

16,000

2,500

3,500

Max. Surface Speed fpm

500

100

300+

100

100

100

150

150

100

150

Static Load Cap. psi

1,000

1,000

600

900

1,000

1,000

1,000

1,000

1,000

1,000

Service Temp. Range (2) ^oF

180

180

165

180

275

200

180 oF

230+

220

220

Coef. of Friction Ave.

.09

.15-.20

.06-.12

.15-.20

.15-.20

.16-.18

.15

.15

.19

.17

Abrasion Resistance (3)

1-3

1-2

1-2

1-2

1-2

1

1-2

3

3

3

Dim. Stability in Water

Fair

Exc.

Exc.

Exc.

Exc.

Exc.

Exc.

Good

Fair

Fair

USDA/FDA Compliant

yes*

yes

yes

no

yes

no

no

yes*

yes

no

Chemical Resistance at 73^o F*

Acid Weak

A

A

A

A

A

A

A

A

A

A

Acid Strong

L

L

L

L

L

A

L

U

U

U

Alkalies Weak

A

A

A

A

A

A

A

A

A

A

Alkalies Strong

L

A

A

A

A

A

A

A

A

A

Hydrocarbon Aromatic

-

L

L

L

L

A

L

A

A

A

Hydrocarbon Aliphatic

-

A

A

A

A

A

A

A

A

A

Ketones

-

A

A

A

A

A

A

A

A

A

Ethers

-

A

A

A

A

A

A

A

A

A

Alcohols

-

A

A

A

A

A

A

A

A

A

Inorganic Salt Solution

A

A

A

A

A

A

A

A

-

A

Continuous Sunlight

A

U**

L

L

L

A

L

L

L

L

Standard Color

Brown

White***

Grey/Brown

Black/Green

White

Black/Green

Black

*Natural

White/Grey

Black

Low Temp ^oF *

-

-200

-

-200

-

-

-10

-10

-10

ENGINEERING DATA

Acetal (Delrin^®)

(8)
Acetal AF

Virgin PTFE

Glass Filled PTFE

(6)
Rulon^® 641

Rulon^® LR Bearing Grade

Polypro-pylene

Polyester (PET)

Peek GF Bearing Grade

CODE LETTERS

D

DT

T

GT

RF

RB

PP

PT

PK

P.V. Cap psi-fpm (1)

2,000

8,000

1,000

10,000

10,000

10,000

-

2,800

14,000

Max. Surface Speed fpm

100

150

100

400

400

400

-

125

100

Static Load Cap. psi

2,000

2,000

400

800

1,000

1,000

-

2,000

6,000

Service Temp. Range (2)

180

200

450

500

550

550

200

230

480

Coef. of Friction Ave.

.22

.08-.14

.06-.15

.10-.13

.10-.30

.15-.25

.23-.26

.20

.20

Abrasion Resistance (3)

5

1-2

5

1-2

1-2

1-2

3-4

3

1-2

Dim. Stability in Water

Good

Good

Exc.

Exc.

Exc.

Exc.

Exc.

Good

Exc.

USDA/FDA Compliant

yes

maybe

yes

no

yes

no

yes

yes

no

Chemical Resistance at 73^o F*

Acid Weak

A

S

A

A

A

A

A

A

A

Acid Strong

U

U

A

A

A

A

L

L

L

Alkalies Weak

A

A

A

A

A

A

A

A

A

Alkalies Strong

U

U

A

A

A

A

A

U

A

Hydrocarbon Aromatic

A

A

A

A

A

A

U

A

A

Hydrocarbon Aliphatic

A

A

A

A

A

A

U

A

A

Ketones

A

A

A

A

A

A

A

L

A

Ethers

A

A

A

A

A

A

A

A

A

Alcohols

A

A

A

A

A

A

A

A

A

Inorganic Salt Solution

-

A

A

A

A

A

A

A

A

Continuous Sunlight

U

L

A

A

A

A

L

A

-

Standard Color

White

Brown

White

White

White

Maroon

Off White

White

Beige

Low Temp ^oF*

-40

-40

-200

-200

-200

-200

-

-

-

#1 At Room Temperature

#2 At Low PV Levels

#3 Rating 1 (Excellent) to 5 (Fair)

#4 For more information see POBCO-B Wood and Plastic Bearings

#5 Additional Chart available on PTFEs

#6 Rulon 641 is Food Approved. Other Rulon Types Available.

#7 Thermal Expansion Is Up To 25% Less Than Normal Ultra-D (UHMW) with extended wear life

#8 PTFE-Filled Acetal

#10 Moly-Filled Nylon

#11 Lube-Filled Nylon - Bearing Grade Green, FDA Compliant Off White

#12 Green & Black Reprocessed UHMW (Mechanical Grade)

#13 33% More Wear Resistant than unfilled UHMWPE

A = Acceptable
L = Limited
U = Not Resistant
* Non FDA Bearing-Grade available in Green
** Ultraviolet Resistant Ultra-D available
*** Other Ultra-D colors available

Home Page | Return to Materials & Engineering Data Index Page | Top of Page