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BB12UU - SNR

BB12UU

Closed ball bushings enable precise and low-friction linear movements on self-supporting hardened steel shafts.

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Technical datasheet

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Specs

PRODUCT DEFINITION

Design type BBE
Ball bushings category Standard ball bushings, closed
Brand SNR
Standard JIS dimensions
Number of seals 2
Material outer cylinder or steel segments 100Cr6
Material Cage PA
Initial greasing no
d - Internal diameter 12 mm
d - Internal diameter tolerance 0/-0,009
D - External diameter 21 mm
D - External diameter tolerance 0/-0,013
L - Length 30 mm
L - Length tolerance 0/-0,2
L1 23 mm
L1 tolerance 0/-0,2
D1 - Diameter 20 mm
L2 1,3 mm
Number of ball rows 4
Mass 0,042 kg
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PRODUCT PERFORMANCE

Cmin 0,415 kN
Cmax 0,587 kN
C0min 0,784 kN
C0max 1,109 kN
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 80 °C