R10ZZ EZO 15.875x34.925x8.733 mm - Inch Deep Groove Ball Bearing

R10ZZ EZO 15.875x34.925x8.733 mm - Inch Deep Groove Ball Bearing

EZO R10ZZ is a single-row inch-series deep groove ball bearing with nominal dimensions 15.875x34.925x8.733 mm, corresponding to 5/8 x 1-3/8 x 11/32 inch. The ZZ version features metal shields on both sides. The bearing is designed primarily for radial loads, while its deep raceway geometry also allows it to accommodate axial loads within the limits of the bearing arrangement.

Technical data

The dimensions 15.8x34.9x8.7 mm are rounded values. For technical identification and replacement selection, the nominal dimensions are 15.875x34.925x8.733 mm.

What does R10ZZ mean?

R - inch-series miniature and small deep groove ball bearing series.

10 - identifies the specific bearing size within the R series.

ZZ - metal shields on both sides of the bearing.

The complete R10ZZ designation should be retained when identifying or ordering the bearing, particularly because rounded metric dimensions can lead to incorrect replacement selection.

R10ZZ dimensions - inch and metric

Nominal inch dimensions:

• bore diameter: 5/8 in
• outside diameter: 1-3/8 in
• width: 11/32 in

Metric equivalents:

• d: 15.875 mm
• D: 34.925 mm
• B: 8.733 mm

For this reason, descriptions such as 15.8x34.9x8.7 mm, 15.88x34.93x8.73 mm and 15.875x34.925x8.733 mm may refer to the same nominal inch bearing size. For engineering selection, the nominal inch dimensions and complete R10ZZ designation should be used.

EZO R10ZZ construction

R10ZZ is a single-row deep groove ball bearing consisting of:

• inner ring,
• outer ring,
• balls,
• cage,
• metal shield on each side.

The deep raceway geometry is primarily designed for radial loads. Deep groove ball bearings can also accommodate axial loads within the operating limits of the specific bearing arrangement.

What does ZZ mean?

The ZZ suffix identifies a bearing fitted with metal shields on both sides.

The shields help to:

• reduce the ingress of contaminants,
• protect the raceways and rolling elements,
• retain lubricant inside the bearing,
• maintain low running friction.

A ZZ shielded bearing should not be confused with versions using elastomer seals.

R10ZZ vs open R10

The basic bearing size remains the same, but the closure design is different.

R10ZZ - metal shields on both sides.

R10 - open bearing version.

The correct version should be selected according to contamination, lubrication and operating requirements.

R10ZZ is an inch-size bearing

One of the most important characteristics of R10ZZ is its inch-based dimensional system.

The 15.875 mm bore corresponds exactly to 5/8 inch. It should not be treated as a standard 16 mm bore.

Likewise, the 34.925 mm outside diameter corresponds to 1-3/8 inch, not a standard 35 mm outside diameter.

Although the numerical differences appear small, they are technically significant for correct shaft and housing fits.

Selection and interchangeability

Before replacing EZO R10ZZ with another bearing, verify:

• complete R10ZZ designation,
• inch dimensional system,
• 5/8 inch bore,
• 1-3/8 inch outside diameter,
• 11/32 inch width,
• ZZ shield configuration,
• required load capacity,
• operating speed,
• lubrication conditions,
• shaft and housing tolerances.

A nominal 16x35 mm bearing should not be selected as a replacement solely because its dimensions are close to those of R10ZZ.

Installation

Before installation, check that the shaft and housing surfaces are clean and dimensionally compatible with the inch-size bearing.

When mounting the bearing onto a shaft, installation force should be applied to the inner ring. When pressing the bearing into a housing, force should be applied to the outer ring.

Mounting force should not be transmitted through the balls, and direct pressure on the ZZ metal shields should be avoided.

Alternative designations and reference formats

• EZO R10ZZ
• R10ZZ EZO
• R 10 ZZ EZO
• EZO R 10 ZZ
• R10 ZZ EZO
• R10ZZ 15.875x34.925x8.733
• R10ZZ 15.8x34.9x8.7
• R10ZZ 5/8 x 1-3/8 x 11/32
• R10 ZZ 5/8 bearing

FAQ - EZO R10ZZ

What are the dimensions of EZO R10ZZ?

The nominal dimensions are 15.875x34.925x8.733 mm, corresponding to 5/8 x 1-3/8 x 11/32 inch.

Is R10ZZ a metric bearing?

No. R10ZZ is an inch-series bearing. Its dimensions in millimetres are metric conversions of the nominal inch dimensions.

Does R10ZZ have a 16 mm bore?

No. The nominal bore diameter is 15.875 mm, exactly 5/8 inch. It should not be rounded to 16 mm when selecting a replacement.

What does ZZ mean in R10ZZ?

ZZ indicates metal shields on both sides of the bearing.

What type of bearing is EZO R10ZZ?

It is a single-row inch-series deep groove ball bearing.

What is the difference between R10ZZ and R10?

R10ZZ has metal shields on both sides, while the basic R10 designation refers to the open version.

Can a 16x35 mm bearing replace R10ZZ?

Not automatically. R10ZZ has nominal inch dimensions of 15.875x34.925x8.733 mm. The actual shaft, housing and bearing dimensions must be checked before considering any replacement.

R10ZZ EZO - key information

EZO R10ZZ is a single-row inch-series deep groove ball bearing with nominal dimensions 15.875x34.925x8.733 mm, equivalent to 5/8 x 1-3/8 x 11/32 inch. The ZZ suffix identifies metal shields on both sides. Correct selection requires maintaining the inch dimensions rather than rounding the bore to 16 mm.

Available from simmering.pl, a specialist supplier of bearings and industrial components. Stock in Poland with worldwide shipping.