EN
Choose your Language
Designation
Axial angular contact ball bearing
Version 1
Double-row
Version 2
with flange
style
A
Style definition
with 3 holes
Main material
steel
Surface finish body
ground
Component material
nitrile rubber
B=Width
25 -0,25
D1=Outside diameter
55-0,01
D=internal diameter
12-0,005
KZZ.=Abbreviation
1255-2RS
Axial rigidity N/μm
375
B1
3
B2
17
Bearing friction torque Nm
0,16
Circular runout μm
2,0
D2
25
D4
6,6
D5
42
Dynamic load rating N
16900
Hole tolerance μm
0-5
M
M6
Moment of inertia kg cm²
0,068
OD tolerance μm
0-10
R
0,3
R1
0,6
Radial bearing clearance
pre-tensioned
Speed limit rpm
3800
Static load rating N
24700
Tightening torque, precision locknut Nm
8
Tilt rigidity Nm/mrad
50
Width tolerance μm
0-250
α
60°
β
120°
~ CONFLICT MINERALS 3TG status
not yet identified
~ CONFLICT MINERALS procurement
DRC conflict-free
~ CP65 substance 2 cancer
soots, tars, and mineral oils
~ PFAS free?
not yet identified
~ REACH SVHC-free?
yes
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes

Description

Material
Steel housing.
Nitrile rubber seal.
Version
Ground edges.
Technical Data
All bearings are supplied ready for mounting with lubricating grease type KE2P-35 acc. to DIN 51825.

Housing and shaft tolerances correspond to roundness tolerance class IT2 and perpendicularity tolerance class IT4.
Application
For thread drive bearing.
Temperature range
-30 °C to +120 °C.
Assembly
Precision slotted nuts must be used for mounting the threaded spindles.

To compensate for any material settling during assembly, tighten the slotted nuts using 2x tightening torque, loosen slightly and then tighten using the prescribed tightening torque.

Tighten fastening screws crosswise up to max. 70% of the yield point.
In order to download our CAD models, you must log in first. If you have not created an account yet, please register under "My Account" (right side of the screen) and follow the instructions.

Other customers also bought