Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Double row cylindrical roller bearings -- Cylindrical roller bearings, double row SKF NNU 4188 M/W33

NNU 4188 M/W33

Design

Design variant/feature

NNU/W33

Dimensions

d		440	mm
D		720	mm
B		280	mm
D₁	≈	638	mm
F		511	mm
b		22.3	mm
K		12	mm
r_1,2	min.	6	mm
r_3,4	min.	5	mm
s	max.	10.8	mm

Abutment dimensions

d_a	min.	466	mm
d_a	max.	500	mm
d_b	min.	516	mm
D_a	max.	694	mm
r_a	max.	5	mm
r_b	max.	4	mm

Calculation data

Basic dynamic load rating	C	5720	kN
Basic static load rating	C₀	11800	kN
Fatigue load limit	P_u	900	kN
Reference speed		700	r/min
Limiting speed		900	r/min
Calculation factor	k_r	0.34

Mass

Mass bearing

450

Model Number: NNU 4188 M/W33
Inner Diameter：440mm Outer Diameter：720mm Width：280mm
Reference speed:900 r/min Limiting speed:700 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：2025-12-09
Application:agricultural testing and analysis equipment and related,Handling machinery and various industrial machinery,electric hydraulic lifting platform,metering pump,ultra-quiet generators,medical treatment,vertical pull,Internal thread type,rolling machine,linear drive,outdoor equipment
Similar models:NNU 4188 K30M/W33 BD-C 4188 K30MB-AOH 24188 NNU 4188 M/W33 24188 ECAK30/W33 24188 ECA/W33 C 4188 K30MB C 4188 MB AOH 24188
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-23160-2CS5K/VT143-OH 3160 HE	280	500	160	Bearings, units and housings
23276 CAK/W33	380	680	240	Bearings, units and housings
3306 A-2ZTN9/MT33	30	72	30.2	Bearings, units and housings
35x58x10 HMSA10 V	35	58	10	Seals
3525862	895.35	971.55	20.65	Seals
45x62x10 HMSA10 RG	45	62	10	Seals
520x570x24 HS5 R	520	570	24	Seals
54936	139.7	165.1	12.7	Seals
GE 110 ES	110	160	70	Bearings, units and housings
GS 81212	60	95	7.5	Bearings, units and housings
IR 55x65x28	55	65	28	Bearings, units and housings
YAT 206	30	62	30.2	Bearings, units and housings

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