PRODUCT INFORMATION

Description and selection guidance

NTN Bearing 5211NRZZG15 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.

5211NRZZG15 specifications

BEARING FREQUENCIES

BPFO - Outer-ring characteristic frequency (60 rpm)
4,206 Hz
BPFI - Inner-ring characteristic frequency (60 rpm)
5,794 Hz
FTF - Cage characteristic frequency (60 rpm)
0,421 Hz
BSF - Rolling-element characteristic frequency (60 rpm)
5,562 Hz

TECHNICAL SPECIFICATIONS

Brand / Manufacturer
NTN
d - Shaft bore diameter
55 mm
D - Diameter outside
100 mm
B - Width
33,3 mm
d1 - Inner-ring outside diameter
68,7 mm
D1 - Diameter rib/groove of outer ring
88,9 mm
a - Load application point
49,9 mm
α - Contact angle
25 °
a min - Minimum groove position
3,07 mm
a max - Maximum groove position
3,28 mm
rs - Minimum fillet radius
1,5 mm
rNs - Minimum fillet radius
0,6 mm
D3 - Diameter groove base maximum
96,8 mm
b min - Width groove minimum
2,7 mm
b max - Width groove maximum
3 mm
a - Distance to oil-injection hole
0,6 mm
D4 max - Diameter outside maximum of retaining ring assembly
106,5 mm
f - Retaining-ring thickness
2,41 mm
Locking-ring reference
R 100
Bearing clearance
CN
Precision class
P0
Weight
0,876 kg

PRODUCT PERFORMANCE

C - Basic dynamic load rating
55,5 kN
C0 - Basic static load rating
49,4 kN
Cu - Fatigue load limit
2,95 kN
f0 - Factor
15
N ref - Reference thermal speed
5500 tr/min
N lim - Mechanical limiting speed
5100 tr/min
Tmin - Minimum operating temperature
-20 °C
Tmax - Maximum operating temperature
120 °C

LIMITS

da min - Minimum shoulder diameter IR
63 mm
da max - Maximum shoulder diameter IR
68,7 mm
Da max - Maximum shoulder diameter OR
92 mm
Ca min - Minimum segment position
5,43 mm
Ca max - Maximum segment position
5,74 mm
ra max - Maximum fillet radius shaft & housing
1,5 mm
rNa max - Maximum fillet radius on the segment side
0,6 mm
Db min - Minimum stop-ring position diameter
107,9 mm
NTN ITEM SUPPORT

Send the current item and operating conditions.

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