STO25
See the technical specification for details.

STO25

Support roller (yoke-type track roller), without flange rings, STO25, NAST 25 R, NAB205

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TECHNICAL INFORMATION

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DIMENSIONS
D 52 mm Outside diameter
d 25 mm Bore diameter
B 16 mm Width inner ring
C 15.8 mm Width outer ring
E 37 mm Raceway diameter outer ring
F 30 mm Raceway diameter inner ring
r min 0.3 mm Chamfer dimension outer ring
r1 min 0.3 mm Chamfer dimension inner ring
LOAD RATINGS
C 16.5 kN Basic dynamic load rating
C0 22.8 kN Basic static load rating
Pu 2.7 kN Fatigue load limit
Fr 18 kN Maximum dynamic radial load
F0r 26 kN Maximum static radial load
LIMITING SPEED
nD G 1800 r/min Limiting speed
WEIGHT
≈m 0.177 kg Weight
OPERATING TEMPERATURE
-30 ºC to +120 ºC Temperature range °C
-22 ºF to +250 ºF Temperature range °F
FEATURES
Crowned Outer ring profile
Needle rollers Rolling elements
1 Number of rows
Without Axial guidance of outer ring
GCr15 (52100, 100Cr6) Ring and roller material
Sheet steel Cage material
Open Sealing type
Lithium Soap Grease NLGI #2 Grease
With Re-lubrication
TOLERANCES AND CLEARANCES
P0(ABEC-1) Tolerance class
CN Radial internal clearance

INTERCHANGE CODE TABLE

INA SKF IKO/THK NTN Koyo-Torrington
STO25
STO 25
NAST 25 R
NAB205
STO25

Tolerance and Clearance


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