Modified Stock Gearing - Boston Gear

RULON 641 Bearings
Applications
RULON 641 bearings are perfect for use in machinery and equipment in the following areas:
• Prepared meat products
• Frozen foods
• Cookies and crackers
• Candy
• Animal and marine fats and oils
• Malt beverages
• Medicinal chemicals
• Pharmaceutical preparations
• Soaps and detergents
• Perfumes and cosmetics
• Food-related packing and sealing
devices
• Food and drug conveyors
• Coffee
• Food preparations
• Biological products
• Food process machinery
• Vending machines
• Household cooking
equipment and appliances
F
Recommended Operating Limits RULON 641
Temperature — Typical Range °F – 400/+500
Maximum PV (continuous) 10,000
Maximum P — PSI (static) 1,000
Maximum V — SFM (no load) 400
Shaft Hardness — Minimum
RB25
Shaft Finish Recommended RMS 8 – 16
Mild Steel, 303
+316 Stainless Steel
Engineering Information RULON 641
Friction—Static & Dynamic .10–.30
Water Absorption ASTM D570 0%
Flammability ASTM D635 Non-Flammable
Chemical Resistance
Inert
Thermal Conductivity BTU/hr/sq. ft/°F/in. 2.60
Linear Coefficient of 78°F–200°F B
3.9 x 10 -5
Thermal Expansion C
4.9 x 10 -5
(-78°F)–(350°F) B
4.2 x 10 -5
C
5.7 x 10 -5
Note: B = Bearing Diameter
C = Bearing Length
SLEEVE BEARINGS
A B Recommended Recommended
–.000 –.000
Housing
Shaft
+.002 +.002
ID OD Bore*
Size
C Catalog Item
±.005 Number Code
1/4 3/8
.375/.374 .2500/.2490
.250 RP46-2 56790
.254 .376 .375 RP46-3 56791
3/8 9/16
.379 .563
.562/.561 .3750/.3740 .375 RP69-3 56792
1/2 3/4
.504 .751
.750/.749 .5000/.4990 .500 RP812-4 56793
5/8 7/8
.875/.874 .6250/.6240 .625
RP1014-5 56794
.630 .876 RP1014-8 56795
3/4 1
1.000/.999 .7500/.7490
.750 RP1216-6 56796
.755 1.001 1.500 RP1216-12 56797
1 1-1/4
1.250/1.249 1.000/.9990
1.000 RP1620-8 56798
1.005 1.251 1.500 RP1620-12 56799
1-1/4 1-1/2
1.255 1.501
1.500/1.499 1.250/1.249 2.000 RP2024-16 56800
1-1/2 1-3/4
1.506 1.751
1.750/1.749 1.500/1.499 2.000 RP2428-16 56801
FLANGED BEARINGS
A B Recommended Recommended C Flange
–.000 –.000 Housing Shaft Lgth. D E Catalog Item
+.002 +.002 Bore* Size ±.005 ±.005 ±.003 Number Code
1/4 3/8
.254 .376
.375/.374 .2500/.2490 .500 .500 .062 RFP46-4 56802
3/8 5/8
.379 .626
.625/.624 .3750/.3740 .500 .875 .125 RFP610-4 56803
1/2 3/4
.504 .751
.750/.749 .5000/.4990 1.000 1.000 .125 RFP812-8 56804
5/8 7/8
.630 .876
.875/.874 .6250/.6240 1.000 1.000 .125 RFP1014-8 56805
3/4 1
.755 1.001
1.000/.999 .7500/.7490 1.000 1.250 .125 RFP1216-8 56817
B A
C
D
E
B
A
SOLID BARS
B Standard Approx. Catalog Item
(Dia.) Tolerances Wt.Lbs. Number Code
Other Shapes
Available On
Special Order
PLATES
C
CORED BARS
1/2
.504 –.000-/+.015 .233 RSP-8 56786
3/4
.755 –.000/+.015 .503 RSP-12 56787
1
1.005
–.000/+.020 .878 RSP-16 56788
All Bars are 13" long
Other Diameters and longer lengths are available
on special order.
B
*Press fit. .004/.001
Note: On A and B dimensions, tolerances apply to actual (decimal) dimensions.
P-1930-BG 04/10 Boston Gear 800-825-6544 159