Bowling ball core · Hammer

Hammer Vibe Core

Symmetric Hammer core

A symmetric core with mid-lane rev-up and medium flare, built for medium oil. 4 of the 16 balls with this core are in stock at BowlersMart.

  • Symmetric
  • RG 2.510
  • Diff 0.042
Hammer Vibe symmetric core shape inside the ball

Specs

RG AT 15 LB

2.510

Mid-lane rev-up

Revs soonerRevs later

54% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.042

Medium flare

Less flareMore flare

36% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

None

Symmetric core

Symmetric cores have no mass bias marker to place when drilling.

RG How soon the ball revs up.Differential How much the ball can flare.Mass bias How asymmetric the core is.
Hammer Vibe Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
16 lb 2.510 0.039 None
15 lbUsed on this page 2.510 0.042 None
14 lb 2.510 0.045 None
13 lb 2.560 0.030 None
12 lb 2.630 0.025 None

Source: Hammer published specs, as shown on BowlersMart’s original Hammer Vibe core page (2022). 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.

1 ball on this core lists different numbers
  • Hammer Burgundy Hammer Bowling Ball: RG 2.570, diff 0.032, mass bias Not listed at 15 lb

Balls with the Hammer Vibe Core

4 of the 16 balls with the Hammer Vibe Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

Solid covers

Solid covers grip the lane soonest and suit heavier oil.

Hammer Deep Ocean Vibe Bowling Ball

Hammer Deep Ocean Vibe

Hammer HK22 CT Reactive Plus

Light to medium oil

Sale price $129.95 Regular price $199.95In stock

Hybrid covers

Hybrid covers mix solid grip with pearl length.

Hammer Arctic Vibe Bowling Ball

Hammer Arctic Vibe

Hammer CT Max Hybrid Reactive

Medium oil

Sale price $102.95 Regular price $179.95In stock

Pearl covers

Pearl covers go longer and turn harder at the end, best on medium oil.

Hammer Bubblegum Vibe Bowling Ball

Hammer Bubblegum Vibe

Hammer CT Max Pearl Reactive

Medium oil

Sale price $109.95 Regular price $179.95In stock
Hammer Ocean Vibe Bowling Ball

Hammer Ocean Vibe

Hammer CT Plus Pearl Reactive

Medium oil

Sale price $102.95 Regular price $179.95In stock
Show 12 balls no longer available at BowlersMart
More bowling balls with the Hammer Vibe Core
Ball Cover First seen
Hammer Radioactive Vibe Bowling Ball Hammer CT Reactive Max Solid June 2024
Hammer Deep Purple IR Vibe Overseas Bowling Ball Hammer NBT Pearl Reactive June 2014
Hammer Viral Bowling Ball Hammer Violent Flip Pearl Reactive October 2014
Hammer Burgundy Hammer Bowling Ball Hammer React-a-Thane Solid Reactive October 2014
Hammer Vibe XR Xtra Rare Private Stock Overseas Bowling Ball Hammer NBT Solid Reactive July 2015
Hammer Viral Hybrid Bowling Ball Hammer Violent Flip Hybrid Reactive June 2016
Hammer Blue Vibe Bowling Ball Hammer CT Plus Reactive June 2017
Hammer Onyx Vibe Bowling Ball Hammer CT Max Reactive June 2018
Hammer Cherry Vibe Bowling Ball Hammer CT Pearl Reactive July 2019
Hammer Orange Vibe Bowling Ball Hammer CT Plus Reactive July 2019
Hammer Peppermint Vibe Bowling Ball Hammer CT Max Reactive August 2019
Hammer Red Pearl Vibe Overseas Bowling Ball Hammer Semtex NE Pearl Reactive June 2023

Shop the 4 available balls with this core

Where the Hammer Vibe sits

Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.

DV8 Larceny Core, RG 2.471, diff 0.028Track I-Core Gen4, RG 2.480, diff 0.053Brunswick Vintage Light Bulb Low RG Core, RG 2.560, diff 0.032Brunswick Dual Centric Core, RG 2.500, diff 0.047Ebonite Big Time Core, RG 2.500, diff 0.054Hammer 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 0.055900 Global Conduit A.I. Core, RG 2.590, diff 0.050Roto Grip GEM A.I. Core, RG 2.490, diff 0.057Hammer Obsession Tour, RG 2.460, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite Centrex Symmetrical Mass Bias, RG 2.460, diff 0.056Motiv Excel Core, RG 2.550, diff 0.030Motiv Detonator Core, RG 2.470, diff 0.055Storm Solarion AI Core, RG 2.480, diff 0.054SWAG Insanity Symmetric Core, RG 2.520, diff 0.034SWAG Fusion Symmetric Core, RG 2.540, diff 0.036SWAG Watcher Symmetric Core, RG 2.510, diff 0.048SWAG Dragon Asymmetric Core, RG 2.480, diff 0.054SWAG Executioner Asymmetric Core, RG 2.500, diff 0.051Motiv Predator V2 Core, RG 2.470, diff 0.054Storm C3 Centripetal Control Core, RG 2.490, diff 0.029Roto Grip Rondure MaxD Core, RG 2.500, diff 0.058Hammer Aftermath Core, RG 2.520, diff 0.052Brunswick Alert Core, RG 2.470, diff 0.037Brunswick Rampart Core, RG 2.500, diff 0.051DV8 Collision Core, RG 2.462, diff 0.052Track MC2 Asym Core, RG 2.470, diff 0.046Radical Evil Eye Symmetric Core, RG 2.490, diff 0.046Ebonite Iron Fist V2 Core, RG 2.470, diff 0.053Radical No Doubt Symmetric Core, RG 2.480, diff 0.051Storm Surge Core, RG 2.580, diff 0.024Roto Grip Morph-Wing Core, RG 2.510, diff 0.051Brunswick Fury Core, RG 2.524, diff 0.038Motiv Sigma Core, RG 2.470, diff 0.047Roto Grip Hustle Core, RG 2.530, diff 0.030900 Global Blast AI Core, RG 2.470, diff 0.055900 Global Strobe AI Core, RG 2.510, diff 0.052Track I-CORE 3.0, RG 2.480, diff 0.056DV8 Unholy Core, RG 2.500, diff 0.051Brunswick Infinity Core, RG 2.520, diff 0.051Storm Catalyst Core, RG 2.500, diff 0.052Hammer Gauntlet Core, RG 2.501, diff 0.050Hammer Raw Hammer Core, RG 2.537, diff 0.038Storm Atmos A.I. Core, RG 2.530, diff 0.042Storm Booster Core, RG 2.540, diff 0.046Track Shuttle Core, RG 2.490, diff 0.038Brunswick Light Bulb Core, RG 2.524, diff 0.030Radical Sneak Attack Core, RG 2.540, diff 0.036Motiv Gear Core, RG 2.480, diff 0.034Hammer Huntsman Core, RG 2.470, diff 0.050Hammer Super LED Core, RG 2.630, diff 0.034Ebonite Enhanced V2 Core, RG 2.480, diff 0.048DV8 Dualistic Core, RG 2.490, diff 0.045Radical Vexed Asymmetric Core, RG 2.490, diff 0.036Motiv Quadfire Core, RG 2.550, diff 0.043Track Stealth Core, RG 2.480, diff 0.056Brunswick Tiered Hexagon Core, RG 2.540, diff 0.045Columbia 300 Piranha Core, RG 2.550, diff 0.043Storm Torsion AI Core, RG 2.470, diff 0.050Storm Element Max AI Core, RG 2.470, diff 0.055Storm Radius Core, RG 2.610, diff 0.020Roto Grip Rondure Tour X Core, RG 2.480, diff 0.034SWAG Unreal Core, RG 2.510, diff 0.047SWAG Craze Core, RG 2.520, diff 0.030SWAG Serpent Asymmetric Core, RG 2.510, diff 0.048Radical Torpedo Asymmetric Core, RG 2.480, diff 0.054Motiv Overload, RG 2.480, diff 0.050DV8 Duality Core, RG 2.480, diff 0.036Hammer Spheroid Core, RG 2.480, diff 0.048Radical Outer Limits Asymmetric, RG 2.490, diff 0.051Motiv Apex Predator Core, RG 2.520, diff 0.055Brunswick Danger Zone Core, RG 2.501, diff 0.048Storm RAD-TQ Core, RG 2.560, diff 0.051Storm Velocity Core, RG 2.480, diff 0.051Hammer LED Resin Bowling Ball Core, RG 2.586, diff 0.027Epic Spark Core, RG 2.540, diff 0.049Track Criterion ID Core, RG 2.490, diff 0.047Brunswick Zone Asymmetric Core, RG 2.470, diff 0.048Ebonite Entity Core, RG 2.510, diff 0.052Roto Grip Rocker AI Core, RG 2.480, diff 0.050Motiv Flux Core, RG 2.570, diff 0.015DV8 Mantra Core, RG 2.490, diff 0.047Hammer Gas Mask Low Diff Core, RG 2.500, diff 0.034Roto Grip RST Core + AI, RG 2.520, diff 0.055Motiv Impulse V2 Core, RG 2.550, diff 0.050SWAG Fusion Core, RG 2.540, diff 0.036SWAG Judge Core, RG 2.490, diff 0.052900 Global Magna AI Core, RG 2.490, diff 0.044Roto Grip Rondure Core, RG 2.490, diff 0.052Columbia 300 Pulse PowerCOR, RG 2.460, diff 0.045Storm Element Tour A.I. Core, RG 2.470, diff 0.035KR Strikeforce KR Launch Core, RG 2.530, diff 0.047900 Global Ellipse Asymmetric A.I. Core, RG 2.480, diff 0.050Motiv Halogen Core, RG 2.550, diff 0.037Storm C3 + AI Core, RG 2.480, diff 0.031Motiv Gear APG, RG 2.470, diff 0.036Radical Snapshot Symmetric Core, RG 2.520, diff 0.050Hammer High Rev Offset Core, RG 2.489, diff 0.053Hammer Huntsman Tour Core, RG 2.472, diff 0.036Hammer LED Core, RG 2.650, diff 0.015Storm Inverted Fe2 Core, RG 2.570, diff 0.046Storm Capacitor Core, RG 2.570, diff 0.022Storm Velocity A.I. Core, RG 2.470, diff 0.053Storm Atomic Core, RG 2.480, diff 0.053Storm RAD-X Asymmetric, RG 2.480, diff 0.054Storm ID AI Core, RG 2.510, diff 0.055Hammer FAB Asymmetric, RG 2.550, diff 0.051Columbia 300 Shifter Core, RG 2.470, diff 0.050Radical Modified Intel Symmetric, RG 2.480, diff 0.032Columbia 300 Columbia Ricochet Core, RG 2.480, diff 0.054Roto Grip Defense AI Core, RG 2.490, diff 0.053Storm Supercoil Core, RG 2.470, diff 0.053Storm Centripetal HD A.I. Core, RG 2.460, diff 0.056Hammer Modified Infamous Core, RG 2.560, diff 0.049Brunswick Ethos Core, RG 2.480, diff 0.053Hammer Hazmat Core, RG 2.470, diff 0.055Track Criterion MD Core, RG 2.500, diff 0.052Storm Ignition Core, RG 2.490, diff 0.052Roto Grip Momentous A.I. Core, RG 2.480, diff 0.049Brunswick Portal X Core, RG 2.470, diff 0.054Ebonite Emerge Core, RG 2.510, diff 0.053Radical Katana Core, RG 2.500, diff 0.050900 Global Meditate LD Symmetric Core, RG 2.560, diff 0.027Columbia 300 Movement Core, RG 2.510, diff 0.053Ebonite Turbo Core (pictured: Ebonite Turbo X Bowling Ball)1Roto Grip Hyped UP Core (pictured: Roto Grip hyped UP! Bowling Ball)2SWAG APX V1 Core (pictured: SWAG APEX Solid Bowling Ball)3Radical Guru Core (pictured: Radical Guru Oracle Pearl Bowling Ball)4DV8 Renegade Core (pictured: DV8 Outsider Bowling Ball)5Motiv Hadron Dual Density Core (pictured: Motiv Nebula Bowling Ball)6Hammer Vibe Core (pictured: Hammer Arctic Vibe Bowling Ball)EARLY REV-UPMID-LANELATER REV-UPHIGH FLAREMEDIUMLOW FLARE2.442.482.522.562.602.642.680.0100.0200.0300.0400.0500.060RG at 15 lbDifferential at 15 lb← Revs up soonerRevs up later →More flare ↑Less flare ↓

Nearest cores, zoomed in

Hover or tap a dot for that core’s numbers. Click a dot to open its page. Drag to move around when zoomed in. The same RG and differential do not guarantee the same ball motion.

This core 1 Nearest cores Other cores

Nearest cores to the Hammer Vibe Core
Core Brand Shape RG Diff vs this core
Ebonite Turbo X Bowling Ball1Ebonite Turbo CorePictured: Ebonite Turbo X
 Ebonite Symmetric 2.510 0.040 RG 0.000 · Diff −0.002
Roto Grip hyped UP! Bowling Ball2Roto Grip Hyped UP CorePictured: Roto Grip hyped UP!
 Roto Grip Symmetric 2.500 0.042 RG −0.010 · Diff 0.000
SWAG APEX Solid Bowling Ball3SWAG APX V1 CorePictured: SWAG APEX Solid
 SWAG Symmetric 2.500 0.042 RG −0.010 · Diff 0.000
Radical Guru Oracle Pearl Bowling Ball4Radical Guru CorePictured: Radical Guru Oracle Pearl
 Radical Asymmetric 2.500 0.044 RG −0.010 · Diff +0.002
DV8 Outsider Bowling Ball5DV8 Renegade CorePictured: DV8 Outsider
 DV8 Asymmetric 2.499 0.040 RG −0.011 · Diff −0.002
Motiv Nebula Bowling Ball6Motiv Hadron Dual Density CorePictured: Motiv Nebula
 Motiv Symmetric 2.500 0.045 RG −0.010 · Diff +0.003

Matches use 15 lb RG and differential.

Drilling and tools

Drilling layoutsLayout guides for symmetric and asymmetric ballsDual angle converterTurn a pin to PAP layout into a dual angle layout

The Hammer Vibe has been praised by high caliber bowlers for years due its versatility and predictability. The original Vibe symmetric core with its medium RG and differential creates a ball motion that is extremely easy to read.  

From Hammer’s description

Questions bowlers ask

What is the RG of the Hammer Vibe Core?

At 15 lb the Hammer Vibe Core has an RG of 2.510. It ranges from 2.510 to 2.630 across the listed weights.

What is the 14 lb RG of the Hammer Vibe Core?

At 14 lb the RG is 2.510.

What is the differential of the Hammer Vibe Core?

At 15 lb the differential is 0.042. This is a symmetric core, so mass bias is not applicable.

Which bowling balls use the Hammer Vibe Core?

Hammer Deep Ocean Vibe Bowling Ball, Hammer Bubblegum Vibe Bowling Ball, Hammer Arctic Vibe Bowling Ball, Hammer Ocean Vibe Bowling Ball, Hammer Radioactive Vibe Bowling Ball. 4 are in stock now.

How do the Hammer Vibe Core specs change by weight?

At 16 lb: RG 2.510, differential 0.039. At 12 lb: RG 2.630, differential 0.025.

How does the Hammer Vibe 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. Hammer published specs, as shown on BowlersMart’s original Hammer Vibe core page (2022), as published by the manufacturer.

Baseline. The baseline is 265 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.

Next lesson

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