81248 M

Single row cylindrical roller thrust bearings are designed to accommodate heavy axial loads and peak loads in one direction, but not radial loads.

They provide a high degree of stiffness and require little axial space. They are mainly used in applications where thrust ball bearings do not have sufficient load carrying capacity. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.

• High axial load carrying capacity
• High stiffness
• Long service life
• Require little axial space
• Separable design

Dimensions

d	240 mm	Bore diameter
D	340 mm	Outside diameter
H	78 mm	Height
d1	335 mm	Outside diameter shaft washer
D1	244 mm	Bore diameter housing washer
B	23 mm	Height shaft washer
r1,2	min.2.1 mm	Chamfer dimension housing washer

Abutment dimensions

da	min.335 mm	Abutment diameter shaft
Da	max.261 mm	Abutment diameter housing
ra	max.2.1 mm	Fillet radius

Calculation data

Basic dynamic load rating	C	1 100 kN
Basic static load rating	C0	4 900 kN
Fatigue load limit	Pu	390 kN
Reference speed		400 r/min
Limiting speed		800 r/min
Minimum axial load factor	A	1.9

Included products

Roller and cage thrust assembly	K 81248 M
Shaft washer	WS 81248
Housing washer	GS 81248