Tapered Roller Bearings - TDI (Tapered Double Inner)

688TD/674 bearing | Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Price：	enquiry
Model Number：	688TD/674
Series：	3.7500 in95.250 mm
r - Cup Backface "To Clear" Radius²：	675
Design Units：	0.030 in0.80 mm
Db - Cup Backface Backing Diameter：	Spacer shows standard nominal .01 radii, actual bearing may vary
da - Cone Frontface Backing Diameter：	Imperial

Series	675
Cone Part Number	688TD
Cup Part Number	674
Design Units	Imperial
Bearing Weight	18 lb8.1 Kg
Cage Type	Stamped Steel
Aa - Cage-Cone Backface Clearance	0 in0 mm
d - Bore	3.9453 in100.211 mm
D - Cup Outer Diameter	6.7500 in171.450 mm
B - Double Cone Width	3.7500 in95.250 mm
C - Cup Width	1.1875 in30.163 mm
T - Bearing Width across Cups	3.7500 in95.250 mm
R - Cone Frontface "To Clear" Radius¹	0.030 in0.80 mm
r - Cup Backface "To Clear" Radius²	0.130 in3.3 mm
Db - Cup Backface Backing Diameter	5.91 in150.10 mm
Ab - Cage-Cone Frontface Clearance	0.12 in3 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)³	14600 lbf64800 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)⁴	97800 lbf435000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁵	25400 lbf113000 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁶	11700 lbf52200 N
K - Factor⁷	1.24
e - ISO Factor⁸	0.47
Y1 - ISO Factor⁹	1.43
Y2 - ISO Factor¹⁰	2.14
Cg - Geometry Factor¹¹	0.106
Note	Spacer shows standard nominal .01 radii, actual bearing may vary

No.	Series	r - Cup Backface "To Clear" Radius²	Design Units	Db - Cup Backface Backing Diameter	da - Cone Frontface Backing Diameter	D - Cup Outer Diameter
TC86EB340/AT500100	TC86EB	-	-	-	-	-
C 2215 V	2200	-	-	75.000	28.000	240.000
SNW/3044 x 7 7/8	-0.005 in	1:12	S-3044 x 7 7/8	230K	1.375 in	W-044
HK 3516.2RS	HK 3516.2RS	5000	-	2.450	21.600	12.500
CFKRE 47 VUU	119.0	1.0	6	34	CFKRE 47 VUU	402
23220KEJW33C2	2.17	3.3	2.22	23220KCJW33C2	2700	2300
87960	87960	604.825	609.600	63.500	-	-
21320RH	3.0	2200	1600	21320RH	215	40.2
7003DT FY	17	0.3	7003DT FY	23000	18000	35
21311KEJW33	2.75	4.18	2.81	21311KCJW33	5500	4500

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