Bearing

SKF Single row deep groove ball bearing with a snap ring groove

Bearing

Designation

6311 NR

Parameter	Symbol	Value
Bore	d	55 mm 2.1654 in
Outer diameter	D	120 mm 4.7244 in
Width	B	29 mm 1.1417 in
Reference speed		12000 r/min
Limiting speed		8000 r/min
Mass		1.4 kg 3.0865 lb
Dynamic load rating	C	74.1 kN 16.6583 klbf
Static load rating	C0	45 kN 10.1164 klbf
Fatigue load limit	Pu	1.9 kN 0.4271 klbf
Snap ring		SP 120
Inner ring outside diameter	d1	75.3 mm 2.9646 in
Outer ring inside diameter	D1	- -
Outer ring recess diameter	D2	104 mm 4.0945 in
Chamfer dimension	r1 min.	2 mm 0.0787 in
Chamfer dimension	r2 min.	2 mm 0.0787 in
Shaft shoulder diameter	da min.	66 mm 2.5984 in
Shaft shoulder diameter	da max.	- -
Housing shoulder diameter	Da max.	109 mm 4.2913 in
Fillet radius	ra max.	2 mm 0.0787 in
Minimum load factor	kr	0.03
Calculation factor	f0	13
Snap ring groove diameter	D3	115.21 mm 4.5358 in
Snap ring outside diameter	D4	129.7 mm 5.1063 in
Snap ring groove width	b	3.1 mm 0.122 in
Snap ring width	f	2.82 mm 0.111 in
Distance from outer ring side face to snap ring groove	C	4.06 mm 0.1598 in
Snap ring groove fillet radius	r0 max.	0.6 mm 0.0236 in
Housing abutment diameter for bearing with snap ring	Db min.	131 mm 5.1575 in
Housing snap ring groove width	ba min.	3.5 mm 0.1378 in
Distance from bearing side face to housing snap ring groove	Ca max.	6.88 mm 0.2709 in

Technical and reference information about the record