TIMKEN 3778-3720-B Bearing

TIMKEN 3778-3720-B tapered bearings with Flange

Also known as : 3778-3720-B

  • Inside Diameter: 47.625 mm
  • Outside Diameter: 93.264 mm
  • Width: 11.113 mm
  • Basic dynamic load rating: 122 kN
  • Basic static load rating: 153 kN

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TIMKEN 3778-3720-B Bearing

TIMKEN 3778-3720-B Bearing details

Series 3700
model 3778-3720-B
Cone Part Number 3778
Cup Part Number 3720-B
Design Units Imperial
Cage Type Stamped Steel
Bearing Weight 0.900 Kg
2.00 lb
Dimensions
d - Bore 47.625 mm
1.8750 in
D - Cup Outer Diameter 93.264 mm
3.6718 in
D1 - Flange Outer Diameter 97.937 mm
3.8558 in
B - Cone Width 30.302 mm
1.1930 in
C - Cup Width 23.813 mm
0.9375 in
C1 - Cup Flange Width 4.763 mm
0.1875 in
T - Bearing Width to Flange 11.113 mm
0.4375 in
T1 - Bearing Width 30.163 mm
1.1875 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius 6.400 mm
0.25 in
r - Cup Backface "To Clear" Radius 3.30 mm
0.130 in
da - Cone Frontface Backing Diameter 55.10 mm
2.17 in
db - Cone Backface Backing Diameter 67.10 mm
2.64 in
Da - Cup Frontface Backing Diameter 89.92 mm
3.56 in
Ab - Cage-Cone Frontface Clearance 1.5 mm
0.06 in
Aa - Cage-Cone Backface Clearance 1.5 mm
0.06 in
a - Effective Center Location -8.1 mm
-0.32 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions) 31700 N
7120 lbf
C1 - Dynamic Radial Rating (1 million revolutions) 122000 N
27500 lbf
C0 - Static Radial Rating 153000 N
34300 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions) 18300 N
4120 lbf
Factors
K - Factor 1.73
e - ISO Factor 0.34
Y - ISO Factor 1.77
G1 - Heat Generation Factor (Roller-Raceway) 49.9
G2 - Heat Generation Factor (Rib-Roller End) 14.5
Cg - Geometry Factor 0.0903

As TIMKEN bearing distributor, Nodes bearings have TIMKEN 3778-3720-B bearings in stock, TSF (Tapered Single with Flange) Imperial , Tapered roller bearings.

Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.

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