Tapered Roller Bearings - TDI (Tapered Double Inner)

688TD/672A bearing | Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Price：	enquiry
Model Number：	688TD/672A
Series：	3.7499 in95.247 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	672A
Design Units	Imperial
Bearing Weight	17.6 lb8 Kg
Cage Type	Stamped Steel
Aa - Cage-Cone Backface Clearance	0 in0 mm
d - Bore	3.9453 in100.211 mm
D - Cup Outer Diameter	6.6250 in168.275 mm
B - Double Cone Width	3.7500 in95.250 mm
C - Cup Width	1.3750 in34.925 mm
T - Bearing Width across Cups	3.7499 in95.247 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	5.87 in149.10 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
23060EJW507C08C4	2.8	4.27	2.87	23060CJW507C08C4	1100	940
TA 6530Z	65	TA 6530Z	205.00	65	77	68500
7922C	Standard	110	1.0	1.1	7922C	8500
LM501349/14	23.012	41.275	0.8	3.6	7000	5200
W 036	W 036	182.1434	-	-	228.6000	-
NU207EG	35	0.6	1.1	0.300	10000	8500
HJ 315 EC	HJ 315 EC	75.000	-	-	-	-
23038A2X	190	2.1	17.80	2800	2100	290
SKR6520A-0790-H-10WV-14M/M75RUD00D1S31	SKR65	-	-	-	-	-
7034DB FY	170	2.1	7034DB FY	2600	2100	260

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