Bearings, units and housings -- Super-precision bearings -- Axial-radial cylindrical roller bearings -- Axial-radial cylindrical roller bearings, super-precision -- SKF NRT 325 B

NRT 325 B

Dimensions

d		325	mm
D		450	mm
H		60	mm
d₁		415	mm
C		20	mm
H₁		40	mm
J		342	mm
J₁		430	mm
N		9.3	mm
N₁		15	mm
N₂		9.3	mm
a		8.2	mm
r₁	min.	0.6	mm
r₂	min.	0.6	mm

Calculation data

Basic dynamic load rating - radial direction	C	134	kN
Basic static load rating - radial direction	C₀	450	kN
Basic dynamic load rating - axial direction	C	153	kN
Basic static load rating - axial direction	C₀	1660	kN
Attainable speed for grease lubrication		110	r/min
Attainable speed for oil-air lubrication		220	r/min
Axial preload		12	kN
Axial unloading force		26	kN
Frictional moment	C_RL	45	N·m
Axial stiffness		28.6	kN/µm
Radial stiffness		8.9	kN/µm
Moment stiffness		427	kN·m/mrad

Mass

Mass bearing

Rotary table

Guideline diameter

700

Mounting information

Retaining bolts
Size		M8
Number of bolts		2
Angle between bolts		180	°
Removal threads
Size	G	M12
Number of threads		3
Angle between threads		120	°
Required attachment bolts, shaft
Bolt size		M8
Pitch	a	10	°
Number of bolts		34
Number of bolts omitted at retaining bolts position		2, 180° apart
Tightening torque (Bolt grade 10.9)		34	N·m
Required attachment bolts, housing
Bolt size		M8
Pitch	a	10	°
Number of bolts		33
Number of bolts omitted at removal thread position		3, 120° apart

Model Number: NRT 325 B
Inner Diameter：325mm Outer Diameter：450mm Width：60mm
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：2026-04-16
Application:laser devices,switch,top industry,sample cup,special broaching machine,spring industry,decoration machinery,thin metal materials,transportation equipment,miscellaneous instruments,bathroom facilities
Similar models:BT4B 328842 E1/C325 SNL 3252 G BT2B 332501 A/HA4 BT2B 332501/HA5 SNL 3256 SNP 3256x10.7/16 BT4B 331259 BG/HA1C325 SNL 3252 BT4B 332590/HA1 BD-23252 CCK/W33-OH 2352 H
BEARING POWER International Trading Co.,Ltd. specialize in NRT325B products，there is large inventory of SKF NRT 325 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 325 B Which SKF NRT325B 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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