Back-to-Back DB

Model

Angular Contact Ball Bearings > Single/Matched Mountings > Back-to-Back DB

product

ORDER
Bearing No.
ⁿ/ₐ 		SD
Inside Diameter
[mm] 		D
Outside Diameter
[mm] 		B
Width
[mm] 		R
Chamfer Dimension
[mm] 		R1
Chamfer Dimension
[mm] 		CR1
Basic Dynamic Load Ratings
[N] 		COR1
Basic Static Load Ratings
[N] 		CR2
Basic Dynamic Load Ratings
[kgf] 		COR2
Basic Static Load Ratings
[kgf] 		FO
Factors
ⁿ/ₐ 		LG
Limiting Speed Grease
[rpm] 		LO
Limiting Speed Oil
[rpm] 		A
Eff. Load center
[mm] 		DA1
Abutment and Fillet Dimensions min.
[mm] 		DA2
Abutment and Fillet Dimensions max.
[mm] 		RA
Abutment and Fillet Dimensions max.
[mm]
7206CDB 30 62 16 1 0.6 37500 29300 3800 2990 13.9 14000 20000 28.3 36 57 1
7306ADB 30 72 19 1.1 0.6 54500 41500 5600 4250 0 7100 9500 48.4 37 67 1
7306BDB 30 72 19 1.1 0.6 50500 38500 5150 3950 0 6300 8500 61.8 37 67 1
7907A5DB 35 55 10 0.6 0.3 18600 17400 1890 1770 0 12000 17000 31 40 52.5 0.6
7907CDB 35 55 10 0.6 0.3 19600 18300 2000 1860 15.7 14000 20000 22.1 40 52.5 0.6
7007ADB 35 62 14 1 0.6 29700 26800 3050 2740 0 9500 13000 42 41 57 1
7007CDB 35 62 14 1 0.6 31000 27300 3150 2790 15 13000 19000 27 41 57 1
7207ADB 35 72 17 1.1 0.6 48500 40000 4900 4100 0 8500 12000 47.9 42 67 1
7207BDB 35 72 17 1.1 0.6 44000 36500 4500 3750 0 6000 8000 61.9 42 67 1
7207CDB 35 72 17 1.1 0.6 49500 40000 5050 4050 13.9 12000 17000 31.3 42 67 1
7307ADB 35 80 21 1.5 1 65000 52500 6600 5350 0 6300 8500 54.2 44 74 1.5
7307BDB 35 80 21 1.5 1 59500 48500 6100 4950 0 5600 7500 69.2 44 74 1.5
7908A5DB 40 62 12 0.6 0.3 23300 22300 2370 2270 0 11000 15000 35.8 45 59.5 0.6
7908CDB 40 62 12 0.6 0.3 24600 23500 2510 2390 15.7 13000 18000 25.7 45 59.5 0.6
7008ADB 40 68 15 1 0.6 31500 31000 3250 3150 0 8500 11000 46.2 46 63 1
7008CDB 40 68 15 1 0.6 33500 32000 3400 3250 15.4 12000 17000 29.5 46 63 1
7208ADB 40 80 18 1.1 0.6 57500 50500 5850 5150 0 7500 10000 52.6 47 75 1
7208BDB 40 80 18 1.1 0.6 52000 46000 5300 4700 0 5300 7500 68.3 47 75 1
7208CDB 40 80 18 1.1 0.6 59000 50500 6000 5150 14.1 11000 15000 34.1 47 75 1
7308ADB 40 90 23 1.5 1 79500 66000 8100 6700 0 5600 7500 60.5 49 84 1.5

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