SKF · GENUINEB-SY 25 TF

Housing Component SY 25 TF

SKF designation SY 25 TF

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Live stock · East Africa network

as of 2026-07-17
NBO
Nairobi
KLA
Kampala
DAR
Dar es Salaam
MWZ
Mwanza

Available — transfers from the network

In stock at Kampala. We transfer across the network and confirm a firm ETA with your quote in under 24h.

Replaces / interchanges

Component SY 505 MComponent YAR 205-2FRecommended product ECY 205

§02 · Overview

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.

§03 · Datasheet

Technical specificationSKF verified40 fields

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

  • Strong
  • Ready to mount
  • Lubricated and sealed bearing
  • Quick locking onto the shaft
  • Cost-effective
ABase width36mm
BWidth of inner ring34.1mm
HHeight of spherical seat centre36.5mm
LOverall length130mm
dBore diameter25mm
A₁Top width22mm
A₅Standout of end cover20.5mm
B₄Distance from locking device side face to thread centre5mm
H₁Foot height16mm
H₂Overall height70mm
J₆Distance of dowel pins120mm
J₇Axial offset of dowel pins13mm
N₄Recommended diameter for dowel pins4mm
R₁Axial position of the housing thread2mm
d₁Shoulder diameter of inner ring()33.74mm
s₁Distance from locking device side face to raceway centre19.8mm
Angular position of the housing thread45°
Hexagonal key size for set screw3mm
Load ratings3
CBasic dynamic load rating14kN
C₀Basic static load rating7.8kN
PᵤFatigue load limit0.335kN
Speed1
Limiting speed7,000r/min
Tolerances & run-out1
Limiting speed with shaft tolerance h6
Bolting5
GRecommended diameter for attachment bolts, mm10mm
JDistance between attachment bolts102mm
NDiameter of attachment bolt hole11.5mm
N₁Length of attachment bolt hole19.5mm
Recommended tightening torque for set screw4N·m
Lubrication4
DNDiameter of head sphere of grease fitting6.5mm
GNThread of grease fitting1/4-28 SAE-LT
RGHousing thread for the grease fitting1/4-28 UNF
Hexagonal key size for the grease fitting7mm
Other8
G₂Set screwM6x0.75
CoatingWithout
Material, housingCast iron
Optional end coverSealing, unit
Sealing type, bearingContact, standard
Compliance with standardISO
Seal and flinger on both sidesSealing, bearing
For material handling applicationsPurpose specific