SYJ 25 TF

Pillow block ball bearing unit with extended inner ring and set screw locking, cast iron, Japanese standards

Pillow (plummer) block ball bearing units consist of an insert bearing mounted in a cast iron housing that can be bolted to a support surface.

This variant is suitable for applications with both constant and alternating directions of rotation. It has an inner ring extended on both sides and is locked onto the shaft by tightening a set screw on the inner ring, making it easy to mount.

  • Strong
  • Ready to mount
  • Designed for a constant and alternating rotation
  • Lubricated and sealed bearing
  • Quick locking onto the shaft
  • Cost-effective

Dimensions

d
25 mm
Bore diameter
d1
33.74 mm
Shoulder diameter of inner ring
A
38 mm
Base width
A1
24 mm
Top width
B
34.1 mm
Width of inner ring
B4
5 mm
Distance from locking device side face to thread centre
H
36.5 mm
Height of spherical seat centre
H1
16 mm
Foot height
H2
70 mm
Overall height
J
102.5 mm
Distance between attachment bolts
J
max.111 mm
Distance between attachment bolts
J
min.94 mm
Distance between attachment bolts
L
140 mm
Overall length
N
13 mm
Diameter of attachment bolt hole
N1
21.5 mm
Length of attachment bolt hole
s1
19.8 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 mm
Axial position of the housing thread
Rα
45 °
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
DOWEL PINS
J6
130 mm
Distance of dowel pins
J7
14 mm
Axial offset of dowel pins
N4
4 mm
Recommended diameter for dowel pins

Calculation data

Basic dynamic load rating C
14 kN
Basic static load rating C0
7.8 kN
Fatigue load limit Pu
0.335 kN
Limiting speed
7 000 r/min
Limiting speed with shaft tolerance h6

Mounting information

Set screw G2
M6x0.75
Hexagonal key size for set screw
3 mm
Recommended tightening torque for set screw
4 N·m
Recommended diameter for attachment bolts, mm G
10 mm
Recommended diameter for attachment bolts, inch G
0.375 in

Properties

Housing type Pillow block
Number of bolt holes for fasteners 2
Fastening bolt hole type Plain
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 Without
Lubricant Grease
Relubrication hole With
Grease fitting With
Compliance with standard
JIS
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
Without
Coating
Without

Logistics

Product net weight 0.762 kg
eClass code 23-05-16-02
UNSPSC code 31171536

Component

Pillow block housing for insert bearings, cast iron, Japanese standards SYJ 505
Insert bearing with set screw locking and extended inner ring YAR 205-2F

(25X140X37.8) (SYJ25TF)

Additional information

Weight 0.762 kg
Size (mm)

Colour

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