Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4944 BK/SPW33

NNU 4944 BK/SPW33

Dimensions

d		220	mm
D		300	mm
B		80	mm
D₁		272.2	mm
F		245	mm
b		11.1	mm
K		3	mm
r_1,2	min.	2.1	mm
r_3,4	min.	1.1	mm
s	max.	3.7	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	231	mm
d_a	max.	242	mm
D_a	max.	289	mm
d_n		247	mm

Calculation data

Basic dynamic load rating	C	512	kN
Basic static load rating	C₀	1140	kN
Fatigue load limit	P_u	114	kN
Attainable speed for grease lubrication		2400	r/min
Attainable speed for oil-air lubrication		2800	r/min
Reference grease quantity	G_ref	150	cm³
Static radial stiffness (guideline value)		5990	N/µm

Mass

Mass bearing

16.5

Model Number: NNU 4944 BK/SPW33
Inner Diameter：220mm Outer Diameter：300mm Width：80mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Cylindrical roller bearings Cylindrical roller bearings, double row, super-precision
Details： Cylindrical roller bearings, double row, super-precision
Update date：2026-04-16
Application:standing experimental equipment,plastic rolling,Ball screw,mechanical and electrical,preservation equipment,machine tool spindle,Chromatography Products,directional control valve,nail products,lifting upgrade,Spectrum Products
Similar models:NNCF 4944 CV NNU 4944 BK/SPW33 NNCL 4944 CV NNC 4944 CV GB 4944 NNU 4944 B/SPW33
BEARING POWER International Trading Co.,Ltd. specialize in NNU4944BK/SPW33 products，there is large inventory of SKF NNU 4944 BK/SPW33 Cylindrical roller bearings, double row, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the NNU 4944 BK/SPW33 Which SKF NNU4944BK/SPW33 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
24x47x7 HMS5 V	24	47	7	Seals
7474	19.05	33.32	6.35	Seals
81130 TN	150	190	31	Bearings, units and housings
FSAF 1518 x 3.1/16	77.7875	-	-	Bearings, units and housings
FSAF 1615	61.9125	-	-	Bearings, units and housings
FY 7/8 TF	22.225	-	-	Bearings, units and housings
GEZH 104 ESX-2LS	31.75	61.913	35.306	Bearings, units and housings
NJ 206 ECML	30	62	16	Bearings, units and housings
PWKR 52.2RS	-	52	24	Bearings, units and housings
RSTO 35	42	72	19.8	Bearings, units and housings
S71930 CD/HCP4A	150	210	28	Bearings, units and housings
YAR 205-2RF/VE495	25	52	34.1	Bearings, units and housings

Purchase the SKF NNU 4944 BK/SPW33 Please fill in the following

Hot number： 13739 BD-22240 CCK/W33-H 3140 32x42x7 HMSA10 V 415000 57519 6306-2RSH 7321 BECBP FSAF 22515 TLC FSAF 22517 FYRP 3 7/16-3 HJ 308 EC KD21-805 SAF 1618 x 3.1/8 SHR 48 W 604-2RS1