Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Double row cylindrical roller bearings -- Cylindrical roller bearings, double row SKF NNU 4884 K/W33

NNU 4884 K/W33

Design

Design variant/feature

NNU K/W33

Dimensions

d		420	mm
D		520	mm
B		100	mm
D₁	≈	485	mm
F		451	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.	428	mm
d_a	max.	446	mm
D_a	max.	509	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	990	kN
Basic static load rating	C₀	2850	kN
Fatigue load limit	P_u	196	kN
Reference speed		1100	r/min
Limiting speed		1200	r/min
Calculation factor	k_r	0.13

Mass

Mass bearing

Model Number: NNU 4884 K/W33
Inner Diameter：420mm Outer Diameter：520mm Width：100mm
Reference speed:1200 r/min Limiting speed:1100 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：2026-04-19
Application:blood cell reagent,Die,Machine tool accessories,rolling mill roll neck and slowdown device,spectrometer,economic mold,Machine Tool Accessories,medical equipment,agricultural testing and analysis equipment and related,raw material accessories,coal
Similar models:NNU 4884 K/W33 NNU 4884/W33
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Model No.	Inner Diameter	Outer Diameter	Width	Type
30326/DF	130	280	-	Bearings, units and housings
31152	79.375	101.68	9.53	Seals
45550	115.9002	146.08	12.7	Seals
634-2Z	4	16	5	Bearings, units and housings
7006 CE/P4AL	30	55	13	Bearings, units and housings
770 VRME R	743	-	-	Seals
900 VA V	825	-	-	Seals
930 VE R	890	-	-	Seals
AOHX 31/500 G	480	500	313	Bearings, units and housings
GEH 60 ES-2LS	60	105	40	Bearings, units and housings
W 617/4 R	4	7	2	Bearings, units and housings
WBB1-8700	1.2	4	1.8	Bearings, units and housings

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