Bearings, units and housings -- Super-precision bearings -- Axial-radial cylindrical roller bearings -- Axial-radial cylindrical roller bearings, super-precision -- SKF NRT 120 B

NRT 120 B

Dimensions

d		120	mm
D		210	mm
H		40	mm
d₁		184	mm
C		12	mm
H₁		26	mm
J		135	mm
J₁		195	mm
N		7	mm
N₁		11	mm
N₂		7	mm
a		6.2	mm
r₁	min.	0.6	mm
r₂	min.	0.3	mm

Calculation data

Basic dynamic load rating - radial direction	C	64.4	kN
Basic static load rating - radial direction	C₀	140	kN
Basic dynamic load rating - axial direction	C	72	kN
Basic static load rating - axial direction	C₀	450	kN
Attainable speed for grease lubrication		230	r/min
Attainable speed for oil-air lubrication		460	r/min
Axial preload		2	kN
Axial unloading force		4.4	kN
Frictional moment	C_RL	6	N·m
Axial stiffness		8.5	kN/µm
Radial stiffness		4.5	kN/µm
Moment stiffness		23	kN·m/mrad

Mass

Mass bearing

4.8

Rotary table

Guideline diameter

315

Mounting information

Retaining bolts
Size		M6
Number of bolts		2
Angle between bolts		180	°
Removal threads
Size	G	M8
Number of threads		3
Angle between threads		120	°
Required attachment bolts, shaft
Bolt size		M6
Pitch	a	15	°
Number of bolts		22
Number of bolts omitted at retaining bolts position		2, 180° apart
Tightening torque (Bolt grade 10.9)		14	N·m
Required attachment bolts, housing
Bolt size		M6
Pitch	a	15	°
Number of bolts		21
Number of bolts omitted at removal thread position		3, 120° apart

Model Number: NRT 120 B
Inner Diameter：120mm Outer Diameter：210mm Width：40mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Axial-radial cylindrical roller bearings Axial-radial cylindrical roller bearings, super-precision
Details： Axial-radial cylindrical roller bearings, super-precision
Update date：2025-12-09
Application:non-ferrous metal alloy,Doppler,position switch,oral medical device,plastic molding,atomizer class,Seals,lifting tackle,lifting chain,Cylinder Standard,rock drilling machinery
Similar models:PBM 061206 M1 PBMF 10012080 M1G1 51202 V/HR11Q1 1207 ETN9 K 81206 TN GS 81209 NRT 120 B 249/1120 CAK30F/W33 NAO 90x120x30 1206 EKTN9
BEARING POWER International Trading Co.,Ltd. specialize in NRT120B products，there is large inventory of SKF NRT 120 B Axial-radial cylindrical roller bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the NRT 120 B Which SKF NRT120B 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.

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8485	21.4376	46.43	7.95	Seals
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NU 20/750 ECMA	750	1090	195	Bearings, units and housings
SAFS 22517-11 x 3 T	76.2	-	-	Bearings, units and housings
SAFS 23024 KATLC x 4.1/8	104.775	-	-	Bearings, units and housings
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Hot number： 100x120x10 HMSA10 RG 11081 186x226x16 HS8 R 3309 DMA 34338 51320 61810-2RZ 623/HR22T2 626-2RSL 71913 ACE/P4AH1 FYTB 1.3/16 WDW NJ 312 ECP SA 35 ESX-2LS SAF 1620 x 3.3/8 T SILKAC 6 M