Description
Brand - SILVERTHIN
Item Number - SM25020BR0 SILVERTHIN
Category - Back-to-Back Paired Angular Contact Thin Section Bearing
Separator - Brass; one piece pocket separator
Precision Class - ABEC Class 1
Bearing Type - Duplexed (Back-to-Back) (Type B)
Seals, Shields - None (Open)
Principal Dimensions & Load Ratings (Metric) :
Bore (B) - 250 mm
Outside Diameter (D) - 290 mm
Width - 20 mm
Land Diameter (L1) - 265 mm
Land Diameter (L3) - 280 mm
Approximate Weight - 4.20 kg
Static Radial Load - 118430 N
Dynamic Radial Load - 48470 N
Static Thrust Load - 210370 N
Dynamic Thrust Load - 72635 N
Static Moment Load - 12750 N-m
Dynamic Moment Load - 5225 N-m
Description of Suffixes :
B - Duplexed Back-to-Back
R - Brass, one piece circular pocket A
0 - ABEC Class 1
Other salient points to be noted :
• Brass; one piece pocket separator 3/8" balls
• Load capacities are not additive
• Note 2 : The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 1.5mm (refer to the image)
• Race Width Tolerance: +0.000 to -0.254mm
Interchange :
SILVERTHIN - SM25020BRO
KAYDON - K25020BR0
♦ ♦ Images are for representation purposes only
Item Number - SM25020BR0 SILVERTHIN
Category - Back-to-Back Paired Angular Contact Thin Section Bearing
Separator - Brass; one piece pocket separator
Precision Class - ABEC Class 1
Bearing Type - Duplexed (Back-to-Back) (Type B)
Seals, Shields - None (Open)
Principal Dimensions & Load Ratings (Metric) :
Bore (B) - 250 mm
Outside Diameter (D) - 290 mm
Width - 20 mm
Land Diameter (L1) - 265 mm
Land Diameter (L3) - 280 mm
Approximate Weight - 4.20 kg
Static Radial Load - 118430 N
Dynamic Radial Load - 48470 N
Static Thrust Load - 210370 N
Dynamic Thrust Load - 72635 N
Static Moment Load - 12750 N-m
Dynamic Moment Load - 5225 N-m
Description of Suffixes :
B - Duplexed Back-to-Back
R - Brass, one piece circular pocket A
0 - ABEC Class 1
Other salient points to be noted :
• Brass; one piece pocket separator 3/8" balls
• Load capacities are not additive
• Note 2 : The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 1.5mm (refer to the image)
• Race Width Tolerance: +0.000 to -0.254mm
Interchange :
SILVERTHIN - SM25020BRO
KAYDON - K25020BR0
♦ ♦ Images are for representation purposes only




