TIMKEN 618/750MA deep groove ball bearing
- Brand
- TIMKEN
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
- Series
- 61000
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Decoding TIMKEN 618/750MA
- 618Series
- Deep groove ball bearings, 618 series. Series differ in outside diameter and width even when the bore is the same.
- /750Bore
- Bore: 750 mm.
- MASuffix
- TIMKEN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
618/750 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
TIMKEN 618/750MA measures 750 mm across the bore and 920 mm across the outside diameter; its width is 78 mm (750 x 920 x 78 mm).
TIMKEN 618/750MA belongs to deep groove ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 618/750MA and any equivalents.
The TIMKEN 618 MA series deep groove ball bearing is a single-row component built for radial and axial loads in both directions. Its machined brass cage, ball-centered, provides rigidity and smooth running, which suits equipment that requires accuracy and low friction. Typical uses include industrial machinery, power transmission assemblies, and other applications where dependable operation matters.
The designation breaks down easily. The 618 prefix identifies the thin-section deep groove ball bearing series, and the MA suffix tells you the cage is machined brass, ball-centered. In part numbers such as 618/500MA, 618/530MA, and 618/600MA, the digits after the slash give the bore diameter in millimeters. Reading the code this way helps you confirm size and construction before you order.
These bearings appear in machine tools, precision equipment, conveyors, pumps, and industrial fans. Their capacity for combined loads and higher speeds makes them a fit for electric motors, gearboxes, and power transmission systems. They are also found in food, chemical, and petrochemical operations where consistent performance is expected.
When selecting a bearing from this series, review the radial and axial loads, the rotation speed, and the working environment. Correct mounting calls for precise alignment between shaft and housing, plus lubrication suited to the application. The machined brass cage resists temperature well and supports high speeds. Check internal clearance and sealing against the conditions on site.
For interchangeability, deep groove ball bearings in similar series from other manufacturers may share standardized dimensions and serve as replacements, as long as you verify tolerances and cage type. Compare the technical specifications of each brand before committing. MR Industrial Accessories can help you evaluate a suitable alternative for your equipment.
To request a quote for a TIMKEN 618 MA series deep groove ball bearing or a specific variant, send the part number or model through WhatsApp or email. The team responds promptly and can also point you to a compatible option that fits your application.
Dimensions
750 x 920 x 78 mm (d x D x B): boundary dimensions for basic designation 618/750, according to ISO 15.
- Bore
- 750 mm
- Outside diameter (D)
- 920mm
- Width (B)
- 78mm
SKF and other brands, same size
Other brands' pages with basic designation 618/750: 750 x 920 x 78 mm (d x D x B) per ISO 15.
- Need the SKF 618/750? We can also quote:618/750 MA
- RKB618/750
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- TIMKEN 618/750MA bearing: what are its dimensions?
- TIMKEN 618/750MA measures 750 mm across the bore and 920 mm across the outside diameter; its width is 78 mm (750 x 920 x 78 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 618/750.
- What does the MA suffix indicate in the 618 MA designation?
- The MA suffix means the bearing has a machined brass cage, ball-centered. This cage provides high strength and allows high speeds, making it suitable for demanding applications.
- How do I read the bore diameter from a 618/500MA part number?
- In 618/500MA, the number 500 after the slash is the bore diameter in millimeters. Other sizes follow the same pattern, as in 618/530MA or 618/600MA.
- Where are 618 MA series deep groove ball bearings typically used?
- They are used in machine tools, electric motors, pumps, fans, and transmission equipment. The design supports radial and axial loads with high precision and low friction.