Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Double row cylindrical roller bearings -- Cylindrical roller bearings, double row SKF NNU 4888 KM/W33

NNU 4888 KM/W33

Design

Design variant/feature

NNU K/W33

Dimensions

d		440	mm
D		540	mm
B		100	mm
D₁	≈	505	mm
F		470	mm
b		16.7	mm
K		9	mm
r_1,2	min.	2.1	mm
s	max.	3.5	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	448	mm
d_a	max.	464	mm
D_a	max.	529	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	1010	kN
Basic static load rating	C₀	2900	kN
Fatigue load limit	P_u	186	kN
Reference speed		1000	r/min
Limiting speed		1100	r/min
Calculation factor	k_r	0.12

Mass

Mass bearing

Model Number: NNU 4888 KM/W33
Inner Diameter：440mm Outer Diameter：540mm Width：100mm
Reference speed:1100 r/min Limiting speed:1000 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Double row cylindrical roller bearings
Details： Double row cylindrical roller bearings Cylindrical roller bearings, double row
Update date：2026-04-16
Application:chamfering machine etc,Ball screw,electric hydraulic lifting platform,Industrial,heating fans,tapered grinder,shaft milling machine,security,small diesel generators,marine test,animal anatomy
Similar models:NNU 4888 KM/W33
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Model No.	Inner Diameter	Outer Diameter	Width	Type
105x130x12 CRW1 V	105	130	12	Seals
107551	273.05	323.85	15.88	Seals
23192 CAK/W33	460	760	240	Bearings, units and housings
24084 ECA/W33	420	620	200	Bearings, units and housings
6201-2ZNR	12	32	10	Bearings, units and housings
709 CE/P4A	9	24	7	Bearings, units and housings
99298	76.0222	85.3186	17.4752	Seals
FYTB 25 WF	25	-	-	Bearings, units and housings
GS 81206	30	52	4.25	Bearings, units and housings
NU 2328 ECML	140	300	102	Bearings, units and housings
P 45 WF	45	-	-	Bearings, units and housings
PFD 25 FM	25	-	-	Bearings, units and housings

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