About | Linear Motion Components | Support Components | Fasteners | Bearings | Rollers | Sheet/Rod | Pulleys, Sprockets, Wheels | Chain Tensioners | Product Worksheets

Properties of POBCO Materials

 

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 Indirect yes yes no yes no no yes* yes no
Chemical Resistance at 73o 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

POBLONTM

(6)
Rulon® 641

Rulon® LR Bearing Grade

Polyester (PET)

Peek GF Bearing Grade

CODE LETTERS D DT T GT TM RF RB PT PK
P.V. Cap psi-fpm (1) 2,000 8,000 1,000 10,000 10,000 10,000 10,000 2,800 14,000
Max. Surface Speed fpm 100 150 100 400 400 400 400 125 100
Static Load Cap. psi 2,000 2,000 400 800 1,000 1,000 1,000 2,000 6,000
Service Temp. Range (2) 180 200 450 500 500 550 550 230 480
Coef. of Friction Ave. .22 .08-.14 .06-.15 .10-.13 .10-.30 .10-.30 .15-.25 .20 .20
Abrasion Resistance (3) 5 1-2 5 1-2 1-2 1-2 1-2 3 1-2
Dim. Stability in Water Good Good Exc. Exc. Exc. Exc. Exc. Good Exc.
USDA/FDA Compliant yes maybe yes no Yes yes no yes no
Chemical Resistance at 73o F*
Acid Weak A S A A A A A A A
Acid Strong U U A A A A A 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 A A A
Hydrocarbon Aliphatic A A A A A A A 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 A A -
Standard Color White Brown White White White White Maroon White Beige
Low Temp oF* -40 -40 -200 -200 -400 -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