Description
Brand - RBC
Item Number - B4448-DSA3 RBC
Category - ShimPack® Series Spherical Plain Angular Contact Bearings (Double Acting)
Basic Part Number - (-4448)
Principal Dimensions & load Ratings (Imperial) :
Nominal Inside Diameter (d) - 2.75 inch
Maximum Inside Diameter (d) - 2.75 inch
Minimum Inside Diameter (d) - 2.7494 inch
Nominal Outside Diameter (D) - 4.75 inch
Maximum Outside Diameter (D) - 4.75 inch
Minimum Outside Diameter (D) - 4.7492 inch
Overall Width (F) - 3.06 (+0.000 to -0.025) inch
Inner Ring Width (B) - 2.79 (+0.000 to -0.005) inch
Outer Ring Width (C) - 1.405 (+0.000 to -0.005) inch
Sphere Diameter (K) - 4.312 inch
Axial Clearance* - 0.004/0.008
End to Hole (J) - 0.578 inch
Outer Ring Bore (L) - 3.3 inch
Maximum Shaft Fillet (r1) - 0.08 inch
Maximum Housing Fillet (r2) - 0.18 inch
Approximate Weight - 7.55 lbs
Recomanded Maximum Shim Pack Compression - 98400 lbf
Static Radial Load Limit - 378800 lbf
Static Thrust Load Limit - 211700 lbf
Dynamic Radial Load Limit - 94700 lbf
Dynamic Thrust Load Limit - 52900 lbf
Maximum Recommended Shaft Diameter ISO g6 (Slip Fit) - 2.7496 inch
Minimum Recommended Shaft Diameter ISO g6 (Slip Fit) - 2.7489 inch
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 2.751 inch
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 2.7505 inch
Maximum Housing Bore ISO N7 (Press Fit) - 4.7494 inch
Minimum Housing Bore ISO N7 (Press Fit) - 4.7479 inch
Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 3.42 kg
Notes about B.....DSA3 Series :
B-DSA-3 series bearings are capable of handling both radial and thrust loads in either direction. They are frequently used in articulating joint applications. Options include tapered bore designs, and they are available in both inch and metric sizes.
Other salient points to be noted :
• Bore dimensions are after MoS2 coating. All other dimensions are before coating.
• For bearings with grooves extended to the face of the outer ring at two places, add suffix “-1” e.g. B3236DSA3-1.
• Ultimate static and impact loads should not exceed 150% of catalog ratings.
* Clearance after shim pack compression.
** Images are for representation purposes only
Item Number - B4448-DSA3 RBC
Category - ShimPack® Series Spherical Plain Angular Contact Bearings (Double Acting)
Basic Part Number - (-4448)
Principal Dimensions & load Ratings (Imperial) :
Nominal Inside Diameter (d) - 2.75 inch
Maximum Inside Diameter (d) - 2.75 inch
Minimum Inside Diameter (d) - 2.7494 inch
Nominal Outside Diameter (D) - 4.75 inch
Maximum Outside Diameter (D) - 4.75 inch
Minimum Outside Diameter (D) - 4.7492 inch
Overall Width (F) - 3.06 (+0.000 to -0.025) inch
Inner Ring Width (B) - 2.79 (+0.000 to -0.005) inch
Outer Ring Width (C) - 1.405 (+0.000 to -0.005) inch
Sphere Diameter (K) - 4.312 inch
Axial Clearance* - 0.004/0.008
End to Hole (J) - 0.578 inch
Outer Ring Bore (L) - 3.3 inch
Maximum Shaft Fillet (r1) - 0.08 inch
Maximum Housing Fillet (r2) - 0.18 inch
Approximate Weight - 7.55 lbs
Recomanded Maximum Shim Pack Compression - 98400 lbf
Static Radial Load Limit - 378800 lbf
Static Thrust Load Limit - 211700 lbf
Dynamic Radial Load Limit - 94700 lbf
Dynamic Thrust Load Limit - 52900 lbf
Maximum Recommended Shaft Diameter ISO g6 (Slip Fit) - 2.7496 inch
Minimum Recommended Shaft Diameter ISO g6 (Slip Fit) - 2.7489 inch
Maximum Recommended Shaft Diameter ISO m5 (Press Fit) - 2.751 inch
Minimum Recommended Shaft Diameter ISO m5 (Press Fit) - 2.7505 inch
Maximum Housing Bore ISO N7 (Press Fit) - 4.7494 inch
Minimum Housing Bore ISO N7 (Press Fit) - 4.7479 inch
Principal Dimensions & Load Ratings (Metric) :
Approximate Weight - 3.42 kg
Notes about B.....DSA3 Series :
B-DSA-3 series bearings are capable of handling both radial and thrust loads in either direction. They are frequently used in articulating joint applications. Options include tapered bore designs, and they are available in both inch and metric sizes.
Other salient points to be noted :
• Bore dimensions are after MoS2 coating. All other dimensions are before coating.
• For bearings with grooves extended to the face of the outer ring at two places, add suffix “-1” e.g. B3236DSA3-1.
• Ultimate static and impact loads should not exceed 150% of catalog ratings.
* Clearance after shim pack compression.
** Images are for representation purposes only




