INA 81256-M thrust roller bearings

Manufacturers NTN PRECISION AXLE CORP. of all thrust roller bearings are represented in our partial 20 d list of No Machining clients. Contact Gary for a complete INA 81256-M thrust roller bearings list of clients and projects.

What is 81256-M bearing cross reference？

Brand Name:INA
Model Number:81256-M
Series:555
Cone Part Number:559
Cup Part Number:552D
Design Units:Imperial
Bearing Weight:8.91 lb
Cage Type:Stamped Steel
Ab - Cage-Cone Frontface Clearance:0.08 in
d:2.5000 in
PDF 81256-M

Product Details

Series555
Cone Part Number559
Cup Part Number552D
Design UnitsImperial
Bearing Weight8.91 lb
Cage TypeStamped Steel
Ab - Cage-Cone Frontface Clearance0.08 in
d2.5000 in
D4.8750 in
B - Cone Width1.4440 in
C - Double Cup Width2.5 in
T - Bearing Width across Cones3.1249 in
R - Cone Backface To Clear Radius10.14 in
r - Cup Frontface To Clear Radius20.06 in
db - Cone Backface Backing Diameter3.19 in
Da - Cup Frontface Backing Diameter4.56 in
Aa - Cage-Cone Backface Clearance0.07 in
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)313200 lbf
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)488500 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)522900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)67810 lbf
K - Factor71.69
e - ISO Factor80.35
Y1 - ISO Factor91.95
Y2 - ISO Factor102.9
G1 - Heat Generation Factor (Roller-Raceway)1191
G2 - Heat Generation Factor (Rib-Roller End)21.1
Cg - Geometry Factor120.111
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Company Profile

NTN PRECISION AXLE CORP.
Phone 630-690-6324
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