TU 3/4 TF

Take-up cast iron unit with insert ball bearing, set screw locking and extended inner ring, ISO

Take-up ball bearing units, consisting of an insert bearing based on a sealed deep groove ball bearing mounted in a grey cast iron housing.

Typically mounted in take-up frames, the unit has an inner ring extended on both sides and is locked by tightening a set screw on the inner ring, which makes it easy to mount.

  • Designed for an alternating rotation
  • Quick and easy to mount onto the shaft
  • Accommodate static initial misalignment
  • Long service life
  • Reduced noise and vibration levels

Dimensions

d
19.05 mm
Bore diameter
d1
28.2 mm
Shoulder diameter of inner ring
A
34 mm
Overall width
A1
13.5 mm
Width of piloting groove
A2
25 mm
Width of flange in which piloting grooves are provided
A5
18.5 mm
Standout of end cover
B
31 mm
Width of inner ring
B4
4.5 mm
Distance from locking device side face to thread centre
H
92 mm
Overall height
H1
76 mm
Distance between bottoms of piloting grooves
H2
54 mm
Height of attachment end
L
97 mm
Overall length
L1
62 mm
Distance from attachment end face to centre line of spherical seat diameter
L2
10 mm
Length attachment end
L3
54 mm
Length of piloting groove
N
19 mm
Diameter of attachment bolt hole
N1
16 mm
Length of attachment slot
N2
32 mm
Height of attachment slot
s1
18.3 mm
Distance from locking device side face to raceway centre
THREADED HOLE
RG
1/4-28 UNF
Housing thread for the grease fitting
R1
2.5 mm
Axial position of the housing thread
Rα
30 °
Angular position of the housing thread
GREASE FITTING
DN
6.5 mm
Diameter of head sphere of grease fitting
SWN
7 mm
Hexagonal key size for the grease fitting
GN
1/4-28 SAE-LT
Thread of grease fitting

Calculation data

Basic dynamic load rating C
12.7 kN
Basic static load rating C0
6.55 kN
Fatigue load limit Pu
0.28 kN
Limiting speed
8 500 r/min
Limiting speed with shaft tolerance h6

Mounting information

Set screw G2
1/4-28 UNF
Hexagonal key size for set screw
3.175 mm
Recommended tightening torque for set screw
4 N·m

Properties

Housing type Take-up
Retaining feature, inner ring Set screws
Bore type Cylindrical
Rubber seating ring Without
Material, housing Cast iron
Material, bearing Bearing steel
Coating Without
Sealing, bearing Seal and flinger on both sides
Sealing type Contact, standard
Sealing, unit Optional end cover
Lubricant Grease
Relubrication hole With
Grease fitting With
Compliance with standard
ISO
Purpose specific
For material handling applications
Material, housing
Cast iron
Sealing, bearing
Seal and flinger on both sides
Sealing type, bearing
Contact, standard
Sealing, unit
Optional end cover
Coating
Without

Logistics

Product net weight 0.906 kg
eClass code 23-05-08-02
UNSPSC code 31171536

Component

Take-up cast iron housing for insert bearing, ISO TU 504 M
Insert bearing with set screw locking and extended inner ring YAR 204-012-2F

Recommended product

End cover for bearing units ECY 204

Additional information

Weight 0.906 kg
Size (mm)

Colour

You may also like…