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BB Series

BB30025
Structure Diagram
Structure Diagram (Click to Enlarge)
ModelBB30025
Basic Information
Series—
Nominal Model—
Basic Dimensions
Inner Diameter d (mm)300
Outer Diameter D (mm)360
Height H/B (mm)25
H/B (mm)—
B1 (mm)—
dp (mm)—
Roller Pitch Circle Diameter Dpw (mm)—
T (mm)—
H2 (mm)—
S (mm)—
C (mm)—
C1 (mm)—
d1 (mm)—
D1 (mm)—
D2 (mm)—
dn (mm)—
dm (mm)—
d2 (mm)—
d3 (mm)—
L1 (mm)—
L2 (mm)—
L3 (mm)—
Chamfer rmin (mm)—
R Fillet Radius3
Mounting Dimensions
Inner Ring do (mm)—
Inner Ring ds (mm)—
Inner Ring Ts (mm)—
Inner Ring Mounting Hole Size Seal Back Side—
Inner Ring Mounting Hole Size 2—
Inner Ring Mounting Dimensions—
Inner Ring Mounting Hole Center Diameter PCD₁—
Inner Ring Mounting Hole Center Diameter dn (mm)—
Inner Ring Mounting Hole Center Diameter dL (mm)—
Inner Ring Mounting Hole Size 1—
Inner Ring Mounting Hole Size Seal Front Side—
Inner Ring N—
Inner Ring n-ΦN—
Inner Ring n-ΦQ3—
Outer Ring Mounting Dimensions—
Outer Ring Mounting Hole Center Diameter PCD₂—
Outer Ring Mounting Hole Center Diameter dm (mm)—
Outer Ring Mounting Hole Size 1—
Outer Ring Mounting Hole Size 2 Seal Back Side—
Outer Ring W1—
Outer Ring n-ΦW1—
Outer Ring n-ΦQ1—
Outer Ring W2—
Outer Ring n-ΦW2—
Outer Ring n-ΦQ2—
Outer Ring dL (mm)—
Shoulder Dimensions
Shoulder Dimensions ds (mm)—
Shoulder Dimensions Dh (mm)—
Basic Load Ratings
Radial Static Load Cor (N)—
Radial Dynamic Load Cr (N)—
Axial Static Load Coa (N)—
Axial Dynamic Load Ca (N)—
Dynamic Load Radial (kg)6163
Dynamic Load Axial (kg)9821
Limit Load Radial Static Load (N)—
Limit Load Radial Dynamic Load (N)—
Thrust (N)—
Moment Static Load (N·m)—
Moment Dynamic Load (N·m)—
Moment (N·m)7482
Precision & Clearance
Standard Radial Clearance0.07-0.1
Inner Ring Runout0.035
Outer Ring Runout0.035
Weight & Speed
Weight (g)—
Weight (KG)4.99
Limit Speed Grease Lubrication (r/min)—
Bearing Friction Torque (Nm)—
Brand Cross-Reference
NTN—
INA—
KAYDON—
Assembly Parameters
Inner Ring Quantity—
Outer Ring Quantity—
Connecting Screw Quantity—
Lifting Hole G—
Lifting Hole Quantity—
Pitch t Quantity×t—
Screw Tightening Torque MA (Nm)—
Compatible Reducer Type—
Preview
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