NSK Bearing Calculation Tool

NSK Bearing Calculation Tool

Explanation & Help

6320 Single-Row Deep Groove Ball Bearings

Designations	Boundary Dimensions			Basic Load Ratings		Limiting Speeds
Designations	d mm	D mm	B mm	Cr N	Cor N	Grease min-1	Oil min-1
6320	100	215	47	191 000	141 000	2 800	3 400

Operating conditions

Calculation results

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Bearing properties

6320

Designations
6320

Boundary Dimensions			Basic Load Ratings		Speeds
Bore diameter	Outside diameter	Width	Basic dynamic load rating	Basic static load rating	Limiting Speeds
Bore diameter	Outside diameter	Width	Basic dynamic load rating	Basic static load rating	Grease	Oil (Oil-bath)
d (mm)	D (mm)	B(T) (mm)	C_r (N)	C_0r (N)	(min^-1)	(min^-1)
100	215	47	191 000	141 000	2 800	3 400

Bearing life

L_able: (h)

L_nm: (h)

L₁₀: (h)

Designations
6320

NSK ABLE Forecaster		ISO 281: 2007 Standard		JIS Standard
L_able (h)	a_nsk	L_nm (h)	a_ISO	L₁₀ (h)	L₁₀ (x10⁶rev)
1-1	1-3	1-4	1-6	1-8	1-9

Average equivalent load	Average rotation speed
P (N)	N (min^-1)
1-10	1-12

ERROR!! ISO281 cannot calculate:To gain κ≧0.1,please review to use lubricants with more higher kinetic viscocity.

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

ERROR!! The C/P value is too low. Calculation result is invalid.

Bearing Fits and Clearances

Designations
6320

Residual Internal Clearance(20℃)
Clearance		Circumferential stress		Surface pressure
min	max	Inner ring	Outer ring	Inner ring	Outer ring
⊿_f (mm)		σ_t (MPa)		P_m (MPa)


Clearance		Circumferential stress		Surface pressure
min	max	Inner ring	Outer ring	Inner ring	Outer ring
⊿_f (mm)		σ_t (MPa)		P_m (MPa)
2-9	2-10	2-11	2-12	2-13	2-14

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

ERROR!! The C/P value is too low. Calculation result is invalid.

Caution!! The output is represented as radial clearance, and the output for matched angular contact bearings is also represented as radial clearance.

Bearing frequencies

fi (Inner ring): (Hz)

fe (Outer ring): (Hz)

2fb (Rolling element): (Hz)

Designations
6320

Pulse generation frequency
Inner ring defect frequency	Outer ring defect frequency	Rolling element defect frequency
fi (Hz)	fe (Hz)	2fb (Hz)

Rotational speed
Inner ring rotational speed	Cage rotational speed	Rolling element rotational speed
n_i (min^-1)	n_c (min^-1)	n_a (min^-1)
3-4	3-5	3-6

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

ERROR!! The C/P value is too low. Calculation result is invalid.

Reference speed (ISO 15312:2003) and Thermal permissible speed

n_perm: (min^-1)

Designations
6320

	Reference speed	Thermal permissible speed
	n_ref (min^-1)	n_perm (min^-1)
		5-3

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

Reference kinematic viscosity

κ:

Designations
6320

Actual kinematic Viscosity	Reference Kinematic Viscosity	Viscosity Ratio
ν (mm²/s)	ν1 (mm²/s)	κ (ν/ν1)
1-15	1-16	1-14

	Actual kinematic Viscosity	Reference Kinematic Viscosity	Viscosity Ratio
	ν (mm²/s)	ν1 (mm²/s)	κ (ν/ν1)
OC1

Average equivalent load	Average rotation speed
P (N)	N (min^-1)
1-10	1-12

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

Grease replenishing interval

t_f: (h)

Designations
6320

	Intervals	Coefficient of load
	t_f (h)	-

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

Reference Replenishing interval prolonging greases are also available. Please consult with NSK.

Frictional moment

M : (N･mm)

Designations
6320

	Total bearing torque
	M (N･mm)

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

ERROR!! The C/P value is too low. Calculation result is invalid.

Required minimum load for Cylindrical Roller Bearings

F_rm: (N)

Designations
6320

	Required minimum load
	F_rm (N)
	8-2

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

ERROR!! The C/P value is too low. Calculation result is invalid.

Maximum permissible axial loads for Cylindrical Roller Bearings

C_A : Grease (N) Oil (N)

Designations
6320

Allowable AXIAL load
Grease	Oil
C_A (N)
9-1	9-2

ERROR!! Low viscosity ratio k, full asperity contact. Use static safety factor to evaluate bearing performance. Recommended to use anti-wear (AW) or extreme pressure (EP) additives to reduce wear.

ERROR!!

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