NTN - Precision Rolling Bearings

Main Spindle Bearings
r1as
ras
ras
daDb
ras
da Da
Dynamic equivalent radial loadPrXFrYFa
Single row / Tandem Back-to-back / Face-to-face
e Fa Fre Fa Fre Fa Fre Fa Fre
X Y X Y X Y X Y
0.68 1 0 0.41 0.87 1 0.92 0.67 1.41
Back-to-back
(DB)
Face-to-face
(DF)
Static equivalent radial loadPorXo FrYo Fa
Single row / Tandem Back-to-back / Face-to-face
Xo Yo Xo Yo
0.5 0.38 1 0.76
When Por Fr with single-row or tandem
arrangement, Por Fr.
Load Mass Reference Abutment and fillet dimensions Part
center dimensions number
mm kg mm
Single-row da Da Db ras r1as
a (approx.) d1 D1 min max max max max
8.3 0.018 14.5 23.4 12.5 23.5 24.8 0.3 0.15 7000ADLLB
8.7 0.022 16.5 25.4 14.5 25.5 26.8 0.3 0.15 7001ADLLB
10.0 0.032 19.5 28.8 17.5 29.5 30.8 0.3 0.15 7002ADLLB
11.1 0.040 21.6 32.2 19.5 32.5 33.8 0.3 0.15 7003ADLLB
13.3 0.070 26.0 38.0 24.5 38.0 39.5 0.6 0.3 7004ADLLB
14.5 0.083 30.4 43.1 29.5 43.1 44.5 0.6 0.3 7005ADLLB
16.5 0.11 36.4 50.4 35.5 50.4 50.5 1 0.6 7006ADLLB
18.4 0.16 41.9 57.2 40.5 57.2 57.5 1 0.6 7007ADLLB
20.2 0.19 47.9 62.7 45.5 62.7 63.5 1 0.6 7008ADLLB
22.1 0.24 53.0 70.3 50.5 70.3 70.5 1 0.6 7009ADLLB
23.3 0.26 58.0 75.3 55.5 75.3 75.5 1 0.6 7010ADLLB
157