MACHINE TOOL SPINDLE SPINDLE BEARINGS

Ball Screw Support Bearings - Metric Series

Notes:

  • Standard Preload: Heavy
  • Add “DU” for Universal Duplex, “TU” for Triplex, or "QU" for Quadruplex sets as a suffix to basic part number.
  • All bearings are universally ground D and can be mounted DU (Universal), DF (Face-to-Face, or DB (Back-to-Back), in pairs or in various combinations — three, four or more bearings as required (see bottom of page for diagrams).
  • For Duplex, Triplex and Quadruplex sets, multiply width and preload indicated by 2, 3, or 4 respectively.

Click on part number to check availability.
BALL SCREW SUPPORT - METRIC SERIES
Bore
"d"
OD
"D"
Width
"B"
Alpine Bearing
Part No.
Load Ratings
Lbs
Speed Ratings RPM
Standard Preload Lbs
Static
Dynamic
17 47 15 M17BS47 5600 5600 3600 700
20 47 15 M20BS47 5600 5600 3600 700
25 62 15 M25BS62 8000 6500 2800 900
30 62 15 M30BS62 8000 6500 2800 900
35 72 15 M35BS72 10,000 8000 2400 1400
40 72 15 M40BS72 10,000 8000 2400 1400
45 75 15 M45BS75 11,500 8500 2100 1500
50 90 15 M50BS90 13,500 9100 1700 1800
55 90 15 M55BS90 13,500 9100 1700 1800
60 90 15 M60BS90 13,500 9100 1700 1800
75 110 15 M75BS110 17,000 10,000 1300 2200
BALL SCREW SUPPORT - INCH SERIES

Interchange Information

ALPINE
BARDEN
FAFNIR
NHBB
NSK
RHP
SKF
M17BS47 BSB2047 MM17BS47 M17BS47 17TAC47A BSB017047 -
M20BS47 - MM20BS47 M20BS47 20TAC47A BSB020047 BSD2047
M25BS62 BSB2562 MM25BS62 M25BS62 25TAC62A BSB025062 BSD2562
M30BS62 BSB3062 MM30BS62 M30BS62 30TAC62A BSB030062 BSD3062
M35BS72 BSB3572 MM35BS72 M35BS72 35TAC72A BSB035072 BSD3572
M40BS72 BSB4072 MM40BS72 M40BS72 40TAC72A BSB040072 BSD4072
M45BS75 - MM45BS75 M45BS75 45TAC75A BSB045075 BSD4575
M50BS90 - MM50BS90 M50BS90 - - -
M55BS90 - MM55BS90 M55BS90 - BSB055090 -
M60BS90 - - M60BS90 - - -
M75BS110 - MM75BS110 M75BS110 - BSB075110 -
 

Diagrams


DB

QB

DF

QF