Bowling ball core · Ebonite
Ebonite Emerge Core
Asymmetric Ebonite core
An asymmetric core with mid-lane rev-up and high flare, built for medium to heavy oil. Balls with this core are no longer available at BowlersMart.
- Asymmetric
- RG 2.510
- Diff 0.053
- MB 0.021

Specs
RG AT 15 LB
2.510
Mid-lane rev-up
53% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.053
High flare
78% of the reactive and urethane balls we stock have a lower differential.
MASS BIAS AT 15 LB
0.021
Strong asymmetry
96% of the asymmetric reactive and urethane balls we stock have a lower mass bias.
| Weight | RG | DifferentialDiff | Mass biasMB |
|---|---|---|---|
| 16 lb | 2.520 | 0.046 | 0.018 |
| 15 lbUsed on this page | 2.510 | 0.053 | 0.021 |
| 14 lb | 2.537 | 0.054 | 0.019 |
| 13 lb | 2.597 | 0.041 | 0.014 |
| 12 lb | 2.593 | 0.041 | 0.014 |
Source: Ebonite published specs, as listed on the Ebonite Emerge Hybrid product page. RG and differential change with ball weight; use the row for the weight you throw. The highlighted 15 lb row is the one used on this page.
Looking for a ball like your Ebonite Emerge?
Balls with the Ebonite Emerge Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

900 Global RB 94 Solid Reactive
Medium to heavy oil

Ebonite Optimize Pearl Reactive
Medium to heavy oil

Ebonite HK22 GB 13.7 Solid Reactive
Medium to heavy oil

Roto Grip MicroTrax Pearl Reactive
Medium to heavy oil, medium oil

Hammer HK22 C2 Solid Reactive
Medium to heavy oil

Hammer HK22 C2 Solid Reactive
Medium to heavy oil
Balls with the Ebonite Emerge Core
None of the 2 balls with the Ebonite Emerge Core are in stock at BowlersMart right now.
Show 2 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| Ebonite Emerge Hybrid Bowling Ball | Ebonite HK22 Optimize Hybrid | January 2024 |
| Ebonite Emerge Bowling Ball | Ebonite Optimize Pearl Reactive | June 2023 |
Where the Ebonite Emerge sits
Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.
Navy ring = a ball in your bag. Dashed ring = off this chart, or this same core.
Nearest cores, zoomed in
Navy ring = a ball in your bag. Dashed ring = off this chart, or this same core.
This core 1 Nearest cores Other cores
| Core | Brand | Shape | RG | Diff | vs this core |
|---|---|---|---|---|---|
|
|
900 Global | Asymmetric | 2.510 | 0.052 | RG 0.000 · Diff −0.001 |
|
|
Ebonite | Asymmetric | 2.515 | 0.052 | RG +0.005 · Diff −0.001 |
|
|
Roto Grip | Asymmetric | 2.510 | 0.051 | RG 0.000 · Diff −0.002 |
|
|
Ebonite | Symmetric | 2.508 | 0.054 | RG −0.002 · Diff +0.001 |
|
|
DV8 | Asymmetric | 2.504 | 0.051 | RG −0.006 · Diff −0.002 |
|
|
Brunswick | Asymmetric | 2.502 | 0.051 | RG −0.008 · Diff −0.002 |
Matches use 15 lb RG and differential.
Drilling and tools
Turn on JavaScript to compare with your ball.Balls with the Ebonite Emerge CoreNone of the 2 balls with the Ebonite Emerge Core are in stock at BowlersMart right now.Show 2 balls no longer available at BowlersMartMore bowling balls with the Ebonite Emerge CoreBallCoverFirst seenEbonite Emerge Hybrid Bowling BallEbonite HK22 Optimize HybridJanuary 2024Ebonite Emerge Bowling BallEbonite Optimize Pearl ReactiveJune 2023Where the Ebonite Emerge sitsEach dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.All coresSymmetricAsymmetricEbonite onlyAny brand900 GlobalBrunswickColumbia 300DV8EboniteEpicHammerKR StrikeforceMotivRadicalRoto GripSWAGStormTrack+−ResetZoom to this coreDV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Track I-Core Gen4, RG 2.480, diff 0.053Brunswick Vintage Light Bulb Low RG Core, RG 2.568, diff 0.032Brunswick Dual Centric Core, RG 2.509, diff 0.047Hammer Stacked LED Core, RG 2.545, diff 0.047Hammer Vindicator Core, RG 2.474, diff 0.053Radical Vexed Variant Asymmetric Core, RG 2.490, diff 0.045Radical Modified Intel Symmetric Core, RG 2.483, diff 0.032Motiv Affliction V2 Core, RG 2.480, diff 0.055Storm Element Tour A.I. Core, RG 2.470, diff 0.035900 Global Conduit A.I. Core, RG 2.590, diff 0.050Roto Grip GEM A.I. Core, RG 2.490, diff 0.057Hammer Obsession Tour Core, RG 2.469, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite T
Questions bowlers ask
What is the RG of the Ebonite Emerge Core?
At 15 lb the Ebonite Emerge Core has an RG of 2.510. It ranges from 2.510 to 2.597 across the listed weights.
What is the 14 lb RG of the Ebonite Emerge Core?
At 14 lb the RG is 2.537.
What is the differential of the Ebonite Emerge Core?
At 15 lb the differential is 0.053. The mass bias is 0.021.
Which bowling balls use the Ebonite Emerge Core?
Ebonite Emerge Hybrid Bowling Ball, Ebonite Emerge Bowling Ball. 0 are in stock now.
Can I still buy a ball with the Ebonite Emerge Core?
Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include 900 Global Viking Conquest Bowling Ball, Ebonite Entity Pearl Bowling Ball, Ebonite Go Time Bowling Ball, Roto Grip Transform Pearl Bowling Ball, Hammer Zero Mercy Solid Bowling Ball, Hammer Fallout Bowling Ball.
How do the Ebonite Emerge Core specs change by weight?
At 16 lb: RG 2.520, differential 0.046, mass bias 0.018. At 12 lb: RG 2.593, differential 0.041, mass bias 0.014.
How does the Ebonite Emerge Core compare with my ball?
Type the ball you throw into the Compare with your ball box on this page. It shows the RG and differential side by side and saves your bag for every core page.
Sources and method
Specs. Ebonite published specs, as listed on the Ebonite Emerge Hybrid product page, as published by the manufacturer.
Baseline. The baseline is 212 in-stock, published reactive and urethane balls. Plastic and polyester covers, 2-piece, 3-piece and pancake cores, missing covers and missing RG or differential values are excluded.
Percentiles. Percentiles are the share of baseline balls with a strictly lower or higher value; ties are not counted.
Nearest cores. Nearest cores are ranked by distance on standardized 15 lb RG and differential, with the same symmetric or asymmetric shape preferred among near ties (distance bands of 0.1).
Mass bias. Mass bias is compared among asymmetric balls with numeric mass bias only.
Updated. Catalog and page updated 2026-10-16.


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