Insert Bearings (Y-bearings)
A deep groove ball bearing with an extended, sphered outer ring and a locking device on the wide inner ring. It clamps straight onto a length of unmachined commercial shafting and seats into a matching housing without any precision bore work. SES holds the range as an authorised SKF distributor, covering bore range Roughly 12 mm to 100 mm; bore forms Cylindrical with locking device, or tapered for adapter sleeve; locking devices Grub screws, eccentric collar, adapter sleeve, spring lock; outer ring Sphered, in ball, cylindrical or flat back form. Executions include y-bearings with grub screws, y-bearings with eccentric locking collar, y-bearings with adapter sleeve, y-bearings with standard inner ring, among others. It is specified most often into belt conveyor idler and take-up positions in coal handling and screw conveyors and drag chain feeders. Every part is genuine SKF through official channels, with designation, specification and options confirmed against your duty before it ships — supplied from Kolkata and our branch network, with breakdown cover that does not sit in an inbox.
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Supplying India’s Industrial Names.
From integrated steel plants to power utilities and EPC majors — the works that cannot afford a counterfeit part specify through SES.
Shaft
Drawn shafting, no shoulder or step needed
Locking
Grub screw, eccentric collar or adapter sleeve
Alignment
Sphered outer ring takes initial misalignment
Sealing
Lip seal and flinger, relubricable
Where it runs.
You will find Insert Bearings (Y-bearings) in the parts of a plant where this particular duty actually occurs. In practice that means belt conveyor idler and take-up positions in coal handling, screw conveyors and drag chain feeders, grain elevators, hullers and paddy separators, and equally tea withering trough fans and roller shafts, agitators, small mixers and packaging line rollers, fertiliser and cement bagging plant drives. What links them is the duty rather than the machine name — shaft: Drawn shafting, no shoulder or step needed. If your installation is not on that list it matters less than you would think: the operating condition decides the specification. Send us the load, the speed, the running temperature and the environment it runs in, and we will match it to the right execution in the SKF range and confirm what is in stock.
Specify it against the duty.
Specification here follows the operating condition, not the catalogue. Shaft rotation reverses or the drive shock-loads on start — An eccentric locking collar or an adapter sleeve execution. Grub screws work loose under reversal and the inner ring then spins on the shaft and scores it. The unit sits in dust, ash or fertiliser fines — The heavy-duty triple-lip or composite seal version. A standard single lip seal packs with fines and lifts, letting abrasive straight into the raceway. Ambient washdown or damp process air is present — A stainless or corrosion-protected execution with a filled grease charge, since a rusted outer ring seizes into the housing bore and the unit must be cut off. Where two of those apply at once, specify for the harsher of the two — under-specifying is what puts the part back on the bench a month later. Send us the duty and we will confirm the execution.
Ordering this from SES.
Grub-screw collars back off under reversing load. If the shaft changes direction or the drive shocks on start, fit eccentric collars or a sleeve, and re-check the screws after the first full shift. Send the designation off the failed part and we will confirm the SKF equivalent and stock position.