PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 5311NRZZG15 belongs to the Double Row Angular Contact Ball Bearings family. The technical tables below show the available dimensions, ratings, speeds and mounting limits for this item.

When requesting a quotation, provide the complete item number, required quantity and operating conditions so Cat Son can verify the configuration.

5311NRZZG15 specifications

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
55 mm
D - Diameter outside
120 mm
B - Width
49,2 mm
d1 - Inner-ring outside diameter
75,2 mm
D1 - Diameter rib/groove of outer ring
105 mm
a - Load application point
61,2 mm
α - Contact angle
25 °
a min - Minimum groove position
3,86 mm
a max - Maximum groove position
4,06 mm
rs - Minimum fillet radius
2 mm
rNs - Minimum fillet radius
1 mm
D3 - Diameter groove base maximum
115,21 mm
b min - Width groove minimum
3,1 mm
b max - Width groove maximum
3,4 mm
a - Distance to oil-injection hole
0,6 mm
D4 max - Diameter outside maximum of retaining ring assembly
129,7 mm
f - Retaining-ring thickness
2,77 mm
Locking-ring reference
R 120
Bearing clearance
CN
Precision class
P0
Weight
2,11 kg

BEARING FREQUENCIES

BPFO - Outer-ring characteristic frequency (60 rpm)
3,173 Hz
BPFI - Inner-ring characteristic frequency (60 rpm)
4,827 Hz
FTF - Cage characteristic frequency (60 rpm)
0,397 Hz
BSF - Rolling-element characteristic frequency (60 rpm)
4,197 Hz

PRODUCT PERFORMANCE

C - Basic dynamic load rating
98,6 kN
C0 - Basic static load rating
78,8 kN
Cu - Fatigue load limit
4,9 kN
f0 - Factor
13.8
N ref - Reference thermal speed
5000 tr/min
N lim - Mechanical limiting speed
4400 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
64 mm
da max - Maximum shoulder diameter IR
75,2 mm
Da max - Maximum shoulder diameter OR
111 mm
Ca min - Minimum segment position
6,58 mm
Ca max - Maximum segment position
6,88 mm
ra max - Maximum fillet radius shaft & housing
2 mm
rNa max - Maximum fillet radius on the segment side
1 mm
Db min - Minimum stop-ring position diameter
131,5 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

Cat Son can compare dimensions, design and mounting conditions before quotation.