Tapered Roller Bearings - TDI (Tapered Double Inner)

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

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Price：	enquiry
Model Number：	688TD/672P
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	672P
Design Units	Imperial
Bearing Weight	17.2 lb7.8 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	1.1875 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	5.87 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
1220	1220	3.700	180	3.60	5.6	3.80
IR/809640	6.130 lb2.781 Kg	HJ-9612040	5.000 in	126.962 mm4.9985 in	127.015 mm5.0006 in	126.985 mm4.9994 in
23056R	4.0	23056R	950	710	420	235
23048KEMW33C08	2.85	4.34	2.91	1500	1300	2.5 mm0.100 in
KT 909825	90	KT 909825	138.0	90	98	60400
2212K;H312X	60	2212K;H312X	0.390	-	-	-
GS 120155	120	GS 120155	410.0	120	155	1.0
22207EJW33C3	2.16	3.29	2.21	22207CJW33C3	8600	6900
NU2313E	65	2.1	2.1	3.560	4800	3800
E/PF/TRB/65MM	2.63	2.17	0.7	0.87	17.0 lb	053893778471

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