Overview
The ZF 0735.300.548 TAPERED ROLLER BEARING is a precision-engineered component designed to manage axial and radial loads within the planetary gear sets of heavy-duty ZF transmissions. This OEM genuine part ensures smooth rotational support for the countershaft and main shaft assemblies, directly influencing torque transfer efficiency and gear alignment. The SKU 0735.300.548 is specifically calibrated for the WG190 series, where it reduces friction between rotating elements and the 4657101039: TRANSMISSION HOUSING. Without this bearing, the internal gear train cannot maintain proper spacing, leading to accelerated wear on adjacent components like the 4657201028: HOUS.FRONT SECT and the 4657201013: HOUSING REAR PART.
Symptoms of Failure
- Low-frequency growling or rumbling noise during acceleration: As the tapered rollers wear, they create uneven contact paths, producing a distinct mechanical roar that intensifies under load.
- Excessive axial shaft play causing gear clash: A worn 0735.300.548 allows the shaft to shift laterally, resulting in hard shifting or grinding sounds when engaging forward or reverse gears.
- Metallic debris in transmission fluid: Flaking or spalling of the bearing raceways introduces fine steel particles into the oil, often visible during routine drain intervals.
- Vibration through the driveline at highway speeds: Degraded roller geometry creates rotational imbalance, transmitting tremors through the 0631306792: CYLINDRICAL PIN and into the output shaft.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 0735.300.548 |
| Bearing Type | Tapered Roller Bearing (Single Row) |
| Bore Diameter | 35 mm (estimated) |
| Outer Diameter | 72 mm (estimated) |
| Width | 18 mm (estimated) |
| Material | Case-hardened 52100 bearing steel |
| Weight | 0.28 kg (approx.) |
| OEM Reference | ZF 0735.300.548 |
| Dynamic Load Rating | 48.5 kN (estimated) |
Compatibility
This OEM bearing is engineered for ZF’s WG and BP series transmissions. Verified direct-fit applications include the WG 190 Series, WG 191 Series, WG 210 Series, WG 211 Series, and WG 230 Series. It also serves the BP 210 Series and BP 230 Series where the countershaft bearing pocket matches the 35mm bore specification. For earlier models like the WG180 or WG200, cross-reference the housing bore dimensions against the 4657201013: HOUSING REAR PART to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing that encloses all gear sets and shafts |
| 4657201028 | HOUS.FRONT SECT | Forward section of the transmission housing supporting the input shaft |
| 4657201013 | HOUSING REAR PART | Rear housing segment that positions the output bearing and tail shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-bearing cap registration |
| 0636100801 | CAP SCREW | M10 fastener securing bearing retainers to the housing |
| 4656301148 | FIXING PLATE | Locking plate that prevents bearing outer race rotation |
| 4657301034 | SCREEN SHEET | Fine mesh filter protecting the oil pump intake from debris |
| 4657301035 | SCREEN SHEET | Secondary filter screen for the lube circuit |
| 0636100803 | CAP SCREW | M12 bolt for heavy-duty housing flange connections |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil delivery tube for bearing lubrication |
Frequently Asked Questions
Q: Can the 0735.300.548 bearing be used in a WG180 transmission?
A: While the WG180 shares some dimensional similarities, we recommend verifying the bearing pocket depth against the 4657201028: HOUS.FRONT SECT specifications. The WG190 and WG210 series are the primary confirmed fits.
Q: How do I know if the bearing is failing before complete seizure?
A: Listen for a cyclical “whirring” sound that changes pitch with road speed. Also check for increased end-play on the main shaft—more than 0.15 mm of axial movement indicates the 0735.300.548 requires replacement.
Q: Is the 0631306792: CYLINDRICAL PIN included with this bearing?
A: No, the cylindrical pin is a separate alignment component. It must be ordered individually to ensure proper housing alignment during reassembly.
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ZF 0735.300.548 TAPERED ROLLER BEARING – Bearing RFQ Support
PartsZF helps B2B buyers source ZF 0735.300.548 TAPERED ROLLER BEARING with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This bearing page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 0735.300.548 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657023001
- Documentation reference: 4657023002
- Documentation reference: 4657023003
- Documentation reference: 4657023004
- Illustration section: COUPLING
- Illustration section: CLUTCH
Cross Reference Support
- 徐工铲运RZ: 860331639
- 柳工: SP190079
Specification Snapshot
| ZF part number | 0735.300.548 |
|---|---|
| Normalized SKU | 0735300548 |
| Part name | TAPERED ROLLER BEARING |
| Product category | bearing |
| BOM occurrences | 74 |
| Illustration records | 4655 |
| Cross references | 2 |
| Media records | 2 |
| Weight | 0.954 |
Image and Documentation Notes
Current product media status: diagram. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
Related Parts
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- ZF 0750.117.785 TAPER ROLLER BEARING
- ZF 0735.330.922 BALL BEARING
- ZF 0750.117.224 TAPER ROLLER BEARING
- ZF 0735.410.862 CYLINDER ROLLER BEARING
