BT7280-9LSS RBC

Brand - RBC
Item Number - BT7280-9LSS RBC
Category - Spherical Plain Bearing with Tapered Bore
Basic Part Number - (-7280)

Principal Dimensions & Load Ratings (Imperial) :
Nominal Diameter of Inner Ring* (d) - 4.5 inch
Bore Diameter (d1) - 4.23 inch
Nominal Outside Diameter (D) - 7.75 inch
Maximum Outside Diameter (D) - 7.75 inch
Minimum Outside Diameter (D) - 7.7488 inch
Inner Ring Width (B) - 4.69 (+0.000 to -0.005) inch
Outer Ring Width (C) - 3.75 (+0.000 to -0.005) inch
Sphere Diameter (K) - 7.19 inch
Unmounted Diametral Clearance - 0.005/0.009 inch
End Plate Diameter (G) - 5.47 inch
Tilt Angle (α) - 10°
Maximum Housing Fillet (r2) - 0.044 inch
Approximate Weight - 30 lbs
Inner Ring Clamping Force** - 27000 lbf
Static Radial Load Limit - 943600 lbf
Static Thrust Load Limit - 360900 lbf
Dynamic Radial Load Limit - 235900 lbf
Maximum Recommended Mounting Dimensions Housing Bore ISO N7 (Press Fit) - 7.7494 inch
Minimum Recommended Mounting Dimensions Housing Bore ISO N7 (Press Fit) - 7.7476 inch
Maximum Recommended Mounting Dimensions Housing Bore ISO R7 (Press Fit) - 7.7476 inch
Minimum Recommended Mounting Dimensions Housing Bore ISO R7 (Press Fit) - 7.7458 inch

Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 13.605 kg

Other salient points to be noted :
• Outer rings of bearings size 72 and above are double fractured (suffix-9L).
• 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