Description
Brand - RBC
Item Number - B28-LNMSS RBC
Category - DuraLube Self-Lubricating, Maintenance-Free Spherical Plain Bearing
Basic Part Number - (-28)
Principal Dimensions & Load Ratings (Imperial) :
Nominal Inside Diameter (d) - 1.75 inch
Maximum Inside Diameter (d) - 1.75 inch
Minimum Inside Diameter (d) - 1.7495 inch
Nominal Outside Diameter (D) - 2.8125 inch
Maximum Outside Diameter (D) - 2.8125 inch
Minimum Outside Diameter (D) - 2.8119 inch
Inner Ring Width (B) - 1.531 inch
Outer Ring Width (C) - 1.312 inch
Sphere Diameter (K) - 2.515 inch
Unmounted Diametral Clearance - 0.003/0.007 inch
Shaft Shoulder Diameter (d1) - 1.984 inch
Tilt Angle (α) - 7°
Maximum Shaft Fillet (r1) - 0.022 inch
Maximum Housing Fillet (r2) - 0.032 inch
Approximate Weight - 1.43 lbs
Static Radial Load Limit - 87112 lbf
Static Thrust Load Limit - 14652 lbf
Static Dynamic Load Limit - 58074 lbf
Maximum Recommended Shaft Diameter ISO f6 (Slip Fit) - 1.749 lbf
Minimum Recommended Shaft Diameter ISO f6 (Slip Fit) - 1.7484 lbf
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 1.7508 inch
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 1.7504 inch
Maximum Recommended Housing Bore ISO R7 (Press Fit) - 2.8122 inch
Minimum Recommended Housing Bore ISO R7 (Press Fit) - 2.811 inch
Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 0.649 kg
Notes about B....LNMSS Series :
RBC's DuraLube™ self-lubricating spherical plain bearings are built for long-lasting performance in tough environments. They operate without grease, using a robust PTFE liner system that minimizes friction between the inner and outer spherical surfaces. These bearings are perfect for situations where re-lubrication isn't feasible but extended service life is essential. They are available in both inch and metric sizes.
Other salient points to be noted :
• Ultimate static and impact loads should not exceed 150% of catalog ratings.
♦ ♦ Images are for representation purposes only
Item Number - B28-LNMSS RBC
Category - DuraLube Self-Lubricating, Maintenance-Free Spherical Plain Bearing
Basic Part Number - (-28)
Principal Dimensions & Load Ratings (Imperial) :
Nominal Inside Diameter (d) - 1.75 inch
Maximum Inside Diameter (d) - 1.75 inch
Minimum Inside Diameter (d) - 1.7495 inch
Nominal Outside Diameter (D) - 2.8125 inch
Maximum Outside Diameter (D) - 2.8125 inch
Minimum Outside Diameter (D) - 2.8119 inch
Inner Ring Width (B) - 1.531 inch
Outer Ring Width (C) - 1.312 inch
Sphere Diameter (K) - 2.515 inch
Unmounted Diametral Clearance - 0.003/0.007 inch
Shaft Shoulder Diameter (d1) - 1.984 inch
Tilt Angle (α) - 7°
Maximum Shaft Fillet (r1) - 0.022 inch
Maximum Housing Fillet (r2) - 0.032 inch
Approximate Weight - 1.43 lbs
Static Radial Load Limit - 87112 lbf
Static Thrust Load Limit - 14652 lbf
Static Dynamic Load Limit - 58074 lbf
Maximum Recommended Shaft Diameter ISO f6 (Slip Fit) - 1.749 lbf
Minimum Recommended Shaft Diameter ISO f6 (Slip Fit) - 1.7484 lbf
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 1.7508 inch
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 1.7504 inch
Maximum Recommended Housing Bore ISO R7 (Press Fit) - 2.8122 inch
Minimum Recommended Housing Bore ISO R7 (Press Fit) - 2.811 inch
Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 0.649 kg
Notes about B....LNMSS Series :
RBC's DuraLube™ self-lubricating spherical plain bearings are built for long-lasting performance in tough environments. They operate without grease, using a robust PTFE liner system that minimizes friction between the inner and outer spherical surfaces. These bearings are perfect for situations where re-lubrication isn't feasible but extended service life is essential. They are available in both inch and metric sizes.
Other salient points to be noted :
• Ultimate static and impact loads should not exceed 150% of catalog ratings.
♦ ♦ Images are for representation purposes only




