Description
Brand - RBC
Item Number - B48-LSSQ RBC
Category - QuadLube® Long Life Spherical Plain Bearings
Basic Part Number - (-48)
Principal Dimensions & Load Ratings (Imperial) :
Nominal Inside Diameter (d) - 3.0 inch
Maximum Inside Diameter (d) - 3 inch
Minimum Inside Diameter (d) - 2.9994 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) - 2.625 inch
Outer Ring Width (C) - 2.25 inch
Sphere Diameter (K) - 4.312 inch
Unmounted Diametral Clearance - 0.004/0.008 inch
Shaft Shoulder Diameter (d1) - 3.406 inch
Tilt Angle (α) - 7°
Maximum Shaft Fillet (r1) - 0.022 inch
Maximum Housing Fillet (r2) - 0.032 inch
Approximate Weight - 6.87 lbs
Static Radial Load Limit - 339500 lbf
Static Thrust Load Limit - 76300 lbf
Static Dynamic Load Limit - 84800 lbf
Maximum Recommended Shaft Diameter ISO f6 (Slip Fit) - 2.9988 lbf
Minimum Recommended Shaft Diameter ISO f6 (Slip Fit) - 2.9981 lbf
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 3.001 inch
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 3.0005 inch
Maximum Recommended Housing Bore ISO R7 (Press Fit) - 4.7481 inch
Minimum Recommended Housing Bore ISO R7 (Press Fit) - 4.7465 inch
Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 3.116 kg
Notes about B....LSSQ Series :
An advanced lubrication system delivers up to 300% longer service life. This patented design ensures consistent lubrication in the load zone, even without load reversal, and enables relubrication while the bearing is still under load. These bearings extend operational life in challenging applications and are available in both inch and metric sizes.
Other salient points to be noted :
• Bore dimensions apply after MoS2 coating. All other dimensions are before coating.
• Ultimate static and impact loads should not exceed 150% of catalog ratings.
♦ ♦ Images are for representation purposes only
Item Number - B48-LSSQ RBC
Category - QuadLube® Long Life Spherical Plain Bearings
Basic Part Number - (-48)
Principal Dimensions & Load Ratings (Imperial) :
Nominal Inside Diameter (d) - 3.0 inch
Maximum Inside Diameter (d) - 3 inch
Minimum Inside Diameter (d) - 2.9994 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) - 2.625 inch
Outer Ring Width (C) - 2.25 inch
Sphere Diameter (K) - 4.312 inch
Unmounted Diametral Clearance - 0.004/0.008 inch
Shaft Shoulder Diameter (d1) - 3.406 inch
Tilt Angle (α) - 7°
Maximum Shaft Fillet (r1) - 0.022 inch
Maximum Housing Fillet (r2) - 0.032 inch
Approximate Weight - 6.87 lbs
Static Radial Load Limit - 339500 lbf
Static Thrust Load Limit - 76300 lbf
Static Dynamic Load Limit - 84800 lbf
Maximum Recommended Shaft Diameter ISO f6 (Slip Fit) - 2.9988 lbf
Minimum Recommended Shaft Diameter ISO f6 (Slip Fit) - 2.9981 lbf
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 3.001 inch
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 3.0005 inch
Maximum Recommended Housing Bore ISO R7 (Press Fit) - 4.7481 inch
Minimum Recommended Housing Bore ISO R7 (Press Fit) - 4.7465 inch
Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 3.116 kg
Notes about B....LSSQ Series :
An advanced lubrication system delivers up to 300% longer service life. This patented design ensures consistent lubrication in the load zone, even without load reversal, and enables relubrication while the bearing is still under load. These bearings extend operational life in challenging applications and are available in both inch and metric sizes.
Other salient points to be noted :
• Bore dimensions apply after MoS2 coating. All other dimensions are before coating.
• Ultimate static and impact loads should not exceed 150% of catalog ratings.
♦ ♦ Images are for representation purposes only




