Download Data Sheet
Description
Brand - RBC
Item Number - MB300-9L RBC
Category - Radial spherical Plain Bearing
Basic Part Number - (-300)
Principal Dimensions & Load Ratings (Metric) :
Nominal Inside Diameter (d) - 300 (-0.035) mm
Nominal Outside Diameter (D) - 430 (-0.045) mm
Nominal Inner Ring Width (B) - 165 (-0.35) mm
Nominal Outer Ring Width (C) - 120 (-0.90) mm
Sphere Diameter (K) - 375 mm
Unmounted Diametral Clearance - 0.17/0.30 mm
Shaft Shoulder Diameter (d1) - 349 mm
Tilt Angle (α) - 7°
Maximum Shaft Fillet (r1) - 1.1 mm
Maximum Housing Fillet (r2) - 1.1 mm
Approximate Weight - 78.35 kg
Static Radial Load Limit - 20000 kN
Static Thrust Load Limit - 2400 kN
Static Dynamic Load Limit - 4000 kN
Maximum Recommended Shaft Diameter ISO f6 (Slip Fit) - 299.944 mm
Minimum Recommended Shaft Diameter ISO f6 (Slip Fit) - 299.912 mm
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 300.043 mm
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 300.020 mm
Maximum Recommended Housing Bore ISO R7 (Press Fit) - 429.897 mm
Minimum Recommended Housing Bore ISO R7 (Press Fit) - 429.834 mm
Notes about MB Series :
These bearings are built to handle substantial radial loads even when misalignment occurs. They can also support a moderate amount of thrust load. Featuring a non-separable design with a single split outer ring, they are offered in both open and sealed configurations, and are available in both inch and metric dimensions.
Other salient points to be noted :
• Outer rings of bearings size 160 and above are double fractured (suffix-9L).
• All dimensions apply before MoS2 coating and Fracture.
♦ ♦ Images are for representation purposes only
Item Number - MB300-9L RBC
Category - Radial spherical Plain Bearing
Basic Part Number - (-300)
Principal Dimensions & Load Ratings (Metric) :
Nominal Inside Diameter (d) - 300 (-0.035) mm
Nominal Outside Diameter (D) - 430 (-0.045) mm
Nominal Inner Ring Width (B) - 165 (-0.35) mm
Nominal Outer Ring Width (C) - 120 (-0.90) mm
Sphere Diameter (K) - 375 mm
Unmounted Diametral Clearance - 0.17/0.30 mm
Shaft Shoulder Diameter (d1) - 349 mm
Tilt Angle (α) - 7°
Maximum Shaft Fillet (r1) - 1.1 mm
Maximum Housing Fillet (r2) - 1.1 mm
Approximate Weight - 78.35 kg
Static Radial Load Limit - 20000 kN
Static Thrust Load Limit - 2400 kN
Static Dynamic Load Limit - 4000 kN
Maximum Recommended Shaft Diameter ISO f6 (Slip Fit) - 299.944 mm
Minimum Recommended Shaft Diameter ISO f6 (Slip Fit) - 299.912 mm
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 300.043 mm
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 300.020 mm
Maximum Recommended Housing Bore ISO R7 (Press Fit) - 429.897 mm
Minimum Recommended Housing Bore ISO R7 (Press Fit) - 429.834 mm
Notes about MB Series :
These bearings are built to handle substantial radial loads even when misalignment occurs. They can also support a moderate amount of thrust load. Featuring a non-separable design with a single split outer ring, they are offered in both open and sealed configurations, and are available in both inch and metric dimensions.
Other salient points to be noted :
• Outer rings of bearings size 160 and above are double fractured (suffix-9L).
• All dimensions apply before MoS2 coating and Fracture.
♦ ♦ Images are for representation purposes only



