BT4448-L RBC

Brand - RBC
Item Number - BT4448-L RBC
Category - Spherical Plain Bearing with Tapered Bore
Basic Part Number - (-4448)

Principal Dimensions & Load Ratings (Imperial) :
Nominal Diameter of Inner Ring* (d) - 2.75 inch
Bore Diameter (d1) - 2.6 inch
Nominal Outside Diameter (D) - 4.75 inch
Maximum Outside Diameter (D) - 4.75 inch
Minimum Outside Diameter (D) - 4.7492 inch
Inner Ring Width (B) - 2.79 (+0.000 to -0.005) inch
Outer Ring Width (C) - 2.25 (+0.000 to -0.005) inch
Sphere Diameter (K) - 4.312 inch
Unmounted Diametral Clearance - 0.004/0.008 inch
End Plate Diameter (G) - 3.3 inch
Tilt Angle (α) - 14°
Maximum Housing Fillet (r2) - 0.032 inch
Approximate Weight - 8 lbs
Inner Ring Clamping Force** - 19000 lbf
Static Radial Load Limit - 339500 lbf
Static Thrust Load Limit - 76300 lbf
Dynamic Radial Load Limit - 84800 lbf
Maximum Recommended Mounting Dimensions Housing Bore ISO N7 (Press Fit) - 4.7495 inch
Minimum Recommended Mounting Dimensions Housing Bore ISO N7 (Press Fit) - 4.748 inch
Maximum Recommended Mounting Dimensions Housing Bore ISO R7 (Press Fit) - 4.7481 inch
Minimum Recommended Mounting Dimensions Housing Bore ISO R7 (Press Fit) - 4.7465 inch

Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 3.628 kg

Other salient points to be noted :
• All dimensions apply before MoS2 coating.
• Ultimate static and impact loads should not exceed 150% of catalog ratings.

* The nominal bore diameter is measured at the inner ring center.
** Higher clamping forces reduce bearing clearance.

♦ ♦ Images are for representation purposes only