Timken supplier in Romania
For Timken we quote tapered roller bearings (TS, TSF, TDO, TNA), spherical roller bearings and housed units; from the code on the bearing we identify the exact variant or its successor.
Founded in 1899 · Headquarters: North Canton, Ohio, USA
Who is Timken and what does it make?
Timken makes bearings (tapered, roller, ball, thrust, precision, housed units) and power transmission components: industrial gear drives, chains, couplings and lubrication systems. The first family in our quotations is tapered roller bearings, identified by the TS, TSF, TDO and TNA types and by the cone and cup numbers. We quote the bearings from the code engraved on the ring.
Tapered roller bearings are mounted in pairs or in double-row assemblies, depending on the type. The industries Timken officially presents include mining, rail, marine, energy and renewable energy, construction, food and beverage, automation and industrial machinery.
For spherical roller bearings, Timken also offers housed units (solid-block) that tolerate misalignment between shaft and housing; the tolerated value differs from series to series and is read from the data sheet of the series concerned.
What do we supply from the Timken range?
| Product | Description |
|---|---|
| Tapered roller bearings (TS, TSF, TDO, TNA) | TS is the single-row type, with one cone and one cup. TSF has a flanged cup, useful for axial location and for alignment in housings with a through bore. TDO has a one-piece double cup and two cones, usually supplied with an inner-ring spacer as a pre-set assembly with a wide effective spread. TNA is similar, but the cones abut directly, without a spacer, and the internal clearance is set in the factory; the TNASW and TNASWE variants have chamfers and slots on the front face of the inner ring, for lubrication through the shaft. They are selected by load, space and the way the clearance is set. |
| Spherical roller bearings and housed units | Double-row spherical roller bearings carry heavy radial loads and tolerate misalignment. Timken also supplies them in housed units (solid-block) made of cast steel, and the range includes two- or four-bolt pillow blocks in SN and SAF style, flange units and take-up units. They are chosen when the alignment between shaft and housing cannot be kept perfect. |
| Power transmission and lubrication | Besides bearings, Timken presents industrial gear drives (Industrial Gearing), chains (Chains and Augers), Lovejoy couplings and lubrication systems. They are requested together with the bearings when whole drive trains are rebuilt, and the request starts from the code or the nameplate of each component. |
Why Timken?
- Tapered roller bearings in several designs (TS, TSF, TDO, TNA), for different mounting arrangements
- Double-row assemblies supplied with a spacer (TDO) or without a spacer, with a factory-set internal clearance (TNA)
- Spherical roller bearings and housed units in cast steel housings (solid-block, including SN and SAF style)
- Power transmission and accessories in the same range: industrial gear drives, chains, couplings, lubrication systems
- Technical catalogues with cone and cup numbers for exact identification of the bearing
Which Timken codes and series are requested most often?
| Code | Description |
|---|---|
| TS | Single-row tapered roller bearing, pressed-steel or pin-type cage |
| TSF | Single-row tapered roller bearing with a flanged outer ring |
| TSL | Single-row tapered roller bearing with DUO-FACE Plus seal |
| TDO | Double-row tapered roller bearing, one-piece outer ring |
| TDI | Double-row tapered roller bearing with a double inner ring |
| TDIT | Tapered roller bearing with a double inner ring and tapered bore |
| TNA | Double-row tapered roller bearing, with the front faces of the inner rings extended so that they abut each other |
| TNASW | Non-adjustable tapered assembly with lubrication slots |
| TNASWE | TNA variant with extended ribs on the back face of the inner rings, ground to the outside diameter |
| 2TS-IM | Assembly of two tapered roller bearings, indirect mounting |
| 2TS-DM | Assembly of two tapered roller bearings, direct mounting |
| 2S | Assembly of two TS tapered roller bearings, supplied with spacers for the inner ring and for the outer ring |
| SR | Assembly of two single-row tapered roller bearings, with clearance set using the SET-RIGHT technique |
| TTHD | Tapered roller thrust bearing, heavy-duty design |
| TTHDFL | Tapered roller thrust bearing with a flat raceway |
| TTVS | Tapered roller thrust bearing, self-aligning raceway |
| TTSP | Tapered roller thrust bearing, light design, with cage |
| TTC | Tapered roller thrust bearing |
| TTCS | Tapered roller thrust bearing |
| TTCL | Tapered roller thrust bearing |
Where is Timken equipment used?
- Mining (excavators, crushers, belt conveyors)
- Oil and gas (drilling, pumps, compressors)
- Wind energy (main shaft bearings of the turbines)
- Rail (wagon axles, locomotives, gearboxes)
- Heavy trucks and trailers (wheels, transmissions)
- Metallurgy (rolling mills, continuous casting machines)
- Cement industry (mills, rotary kilns)
- Pulp and paper industry (machine rolls, digesters)
- Cranes and construction machinery
- Marine (propeller shafts, rudder bearings)
Timken certifications
- ISO 9001 Quality Management
- IATF 16949 - plants for the automotive industry
- AS9100 / EN9100 - plants for the aerospace industry
How do we supply Timken in Romania?
We supply Timken bearings and power transmission components (tapered roller bearings, spherical roller bearings, gear drives, chains) brought in to order through our EU sourcing channels. We confirm availability in the quotation; for interchangeability and dimensions we work with the manufacturer's technical documentation. As a general rule, common sizes can arrive in 24–72 h when the item is in stock, locally or at the supplier, while large bearings or special configurations usually need 1–4 weeks on order, with no promise for a particular size before it is checked. For an accurate quotation, please send us the code of the existing bearing or the load, speed and operating environment. We come back with the real availability confirmed by the supplier.
We check stock for large bearings or special configurations on request; the custom design services for Philadelphia Gear gear drives belong to the manufacturer.
Frequently asked questions about Timken
How do I read the number of a Timken tapered roller bearing, for example HM231149NA / HM231116D?
On inch tapered roller bearings, the cone (the inner ring with rollers) and the cup (the outer ring) have separate numbers. In this TNA example, HM231149NA is the cone and HM231116D is the cup; the HM prefix marks the load class (heavy medium). On ISO metric bearings, a single number identifies the whole bearing. For an accurate quotation we need the numbers from both rings.
What is the difference between TS, TSF, TDO and TNA?
TS has a single row of rollers (one cone and one cup); TSF also has a flanged cup. TDO has two rows, a one-piece double cup and usually a spacer between the cones. TNA is a double-row assembly in which the cones abut directly, without a spacer, with a factory-set internal clearance.
Which parts are requested together with Timken bearings?
The Timken range includes housed units (for example SN and SAF style pillow blocks), Lovejoy couplings, chains, industrial gear drives and lubrication systems. If you are rebuilding a drive train, send us the codes from each component and the mounting drawing, so that we can group the request.
What do I send for a quotation on a Timken bearing and how long does it take?
Send the cone and cup numbers and, if the code has worn off, the bore diameter, the outside diameter, the width and the type of mounting. On order, usually 1–4 weeks, depending on size and type; we confirm the exact lead time in the quotation.
How do I request a Timken quotation?
Send the Timken code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.
Request a quoteUpdated: 12 November 2026 · Sources: Timken, The Timken Company (manufacturer documentation)