16034 bearing: complete specifications & equivalents
The 16034 is a ISO 15 radial bearing sized 170 x 260 x 28 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 170 mm |
| Outer diameter D | 260 mm |
| Width B | 28 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 131 kN |
| Basic static load rating C0 | 136 kN |
| Reference speed (thermal) | 2850 rpm |
| Limiting speed (mechanical) | 3500 rpm |
| Mass | 5100 g |
| Manufacturer designation | FAG 16034 |
| Standard | ISO 15 |
| Catalog version | HR 1 Rolling Bearings (Jan 2020) |
| Last verified | 2026-09-25 |
Source: catalog reference (HR 1 Rolling Bearings (Jan 2020)) · extracted 2026-09-25
Parameters extracted from the official FAG Rolling Bearings catalogue (HR 1 Rolling Bearings (Jan 2020)); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.com.
Dimensions in inches & 16000-series range
| Bore d | 6.693 in |
|---|---|
| Outer diameter D | 10.236 in |
| Width B | 1.102 in |
| ISO bore code | 34 |
| Radial section height (D−d)/2 | 45 mm |
| Smallest bore in 16000-series | 12 mm |
| Largest outer diameter in 16000-series | 560 mm |
| Width range across 16000-series | 7–57 mm |
| Bore position in 16000-series (smallest first) | 28 of 40 |
| Bore above smallest 16000-series size | 158 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 16034-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | Same 170×260×28 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 16034 model number is decoded
In the 16000-series (the narrow extra-light section of ISO 15) the last two digits encode the bore: 16034 carries bore code 34 = 170 mm. Outside diameter 260 mm and width 28 mm come from the ISO 15 boundary-dimensions general plan. With no seal suffix the bearing is open: no shields or seals are fitted and lubrication is supplied by the application. For normal-load mounting with a rotating inner ring on a 170 mm shaft, typical catalogue practice is a m6 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. In the Schaeffler HR 1 catalogue this open execution carries the bare designation; protected variants are ordered separately with suffixes 2Z (steel shields), 2RZ (non-contact rubber seals) and 2RSR (lip-contact rubber seals).
Typical equipment & failure modes
Common applications
- medium and heavy industrial drives
- large gearboxes
- industrial fans and blowers
- hoists and winches
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- fretting corrosion on a loose shaft seat
- cage damage from operation beyond the limiting speed
Selection pitfalls — read before you substitute
- Large bores like the 170 mm of 16034 demand clean, burr-free seats; one raised burr under a ring this size cocks the bearing and concentrates load at the raceway edge, cutting life drastically.
- The 160xx narrow section at 170 mm bore shares the 260 mm outside diameter of the 6034 but is only 28 mm wide; a 6034 in a 28 mm-wide seat is loose axially and the reverse swap will not fit — match width as well as bore and outside diameter.
- Storage matters for open bearings: 16034 leaves the factory with rust preventive only, so clean it and apply the service grease at assembly even if the rings look oily from the wrapper.
- Open bearings tolerate the highest speeds in the 16000-series but need a defined regreasing interval; run-to-failure lubrication is the dominant cause of early failure in open 16034 units.
- Measure the shaft, do not trust the drawing: a 170 mm nominal journal worn by even 0.02 mm turns an interference seat into a creeping fit that frets the bore of 16034.
- Vibration during standstill brinells the raceways of a 170 mm bearing at ball spacing; if the machine sits idle next to running equipment, turn the shaft over periodically or isolate the arrangement.
- The open 16034 has no integral sealing; in the Schaeffler HR 1 catalogue the protected variants carry suffixes 2Z (two steel shields), 2RZ (two non-contact rubber seals) and 2RSR (two lip-contact rubber seals). Do not confuse FAG's 2RZ with a contact seal — the RZ lip does not touch the inner ring, which is why its speed capability stays close to the open bearing.
- FAG lists the mechanical limiting speed at 3500 r/min for 16034 (thermal reference speed 2850 r/min); the thermal reference speed is the binding figure for continuous duty — size the lubrication interval off the reference speed, not the mechanical limit.
- The 170 mm bore places 16034 in Schaeffler's large-size range; at these diameters the pressed steel cage is speed-limited and FAG commonly offers a machined brass cage (suffix M) as an option. Verify cage material and relubrication provision with the distributor, and do not extrapolate small-bore speed ratings to this size.
- At 131 kN dynamic load rating (C) and 136 kN static (C0), 16034 is a heavy-load FAG bearing for industrial gearboxes and large conveyors; Schaeffler expects a machined brass cage (suffix M) at this rating for shock duty, and C0 must be checked against mounting or lifting loads.
- At 5100 g (5.1 kg), 16034 is a heavy FAG bearing that requires a crane or hoist for handling; induction-heat the inner ring (max 120 °C) and use a mechanical puller for removal — never apply heat directly to the balls or cage.
- The 170×260×28 mm envelope of 16034 gives a D/d ratio of 1.53 and 45.0 mm radial section height — a thin FAG section that saves space but is sensitive to misalignment and shock; keep the housing round within IT7 and the shaft deflection below the raceway contact envelope.
- The 131/136 kN load ratings, mass 5100 g here are Schaeffler HR 1 Rolling Bearings (Jan 2020) catalogue figures for 16034 on the 170×260×28 mm ISO 15 envelope; internal geometry and ratings legitimately differ between brands, so re-verify before substituting another manufacturer's 16034 in a rated drive. Where FAG has since released an X-life version of this size, its expanded C/C0 ratings supersede the HR 1 print values quoted here.
- Mixing old and new FAG generations of the same designation in one arrangement is dimensionally acceptable, but where ratings matter — preloaded or matched sets — order both positions from the same generation and lot.
- FAG standard tolerance for this size is P0 (PN); P6/P5 precision executions exist for spindle-adjacent duty but carry different order numbers in the Schaeffler system — they are not a selectable sorting of standard stock.
Frequently asked questions
What are the dimensions of a 16034 bearing?
A 16034 deep-groove ball bearing has a 170 mm bore, 260 mm outer diameter and 28 mm width (6.693 × 10.236 × 1.102 in), per ISO 15 boundary dimensions. It is an open bearing with no seals or shields.
Are 16034 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 16034 uses the same ISO 15 envelope (170×260×28 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting.
What internal clearance does 16034 have?
Unless a clearance suffix says otherwise, 16034 is manufactured to normal (CN) radial internal clearance. Tight fits and hot shafts consume clearance in service — for those conditions order the C3 execution of 16034 and verify the residual clearance after mounting.
What is the FAG order number for an open 16034?
FAG lists the open 16034 under the bare designation 16034; protected versions use suffixes 2Z (steel shields), 2RZ (non-contact rubber seals) and 2RSR (lip-contact rubber seals) on the same 170 mm bore envelope.
What is the difference between FAG 2RZ and 2RSR seals?
2RZ is a non-contact rubber seal: minimal drag, speed close to the open bearing, not liquid-tight. 2RSR is a lip-contact seal: better protection against moisture and fine dust at the cost of speed and torque. Both keep the ISO 15 envelope of 16034.
Reviewed & verified by the MPN Base engineering desk against source catalog HR 1 Rolling Bearings (Jan 2020) on 2026-09-25. Read our editorial & correction policy.